短文改错经典习题

高三英语短文改错形容词和副词误用练习题30题1. I'm extreme happy to hear from you.A. extremeB. extremelyC. more extremelyD. most extreme答案：B。

解析：原句中“happy”是形容词，需要用副词来修饰，“extreme”是形容词，不能修饰形容词“happy”，“extremely”是副词，可以修饰“happy”，表示非常高兴。

C选项“more extremely”是比较级形式在此处无比较含义不需要；D 选项“most extreme”是最高级形式也不符合语境。

2. He runs very quick.A. quickB. quickerC. quickestD. quickly答案：D。

解析：“runs”是动词，需要用副词来修饰，“quick”是形容词不能修饰动词，“quickly”是副词。

B选项“quicker”是比较级，C选项“quickest”是最高级，这里没有比较的意思，所以选D。

3. This is a most beautifulest flower I've ever seen.A. most beautifulestB. more beautifulC. the most beautiful答案：C。

解析：原句中“beautifulest”这种形式是错误的，形容词“beautiful”的最高级形式是“the most beautiful”，表示在一定范围内最美丽的。

A选项形式错误；B选项“more beautiful”是比较级；D选项“beautiful”是原级，不符合句子表达需要的最高级的意思。

4. She is a very carefully girl.A. carefullyB. carefulC. more carefulD. most careful答案：B。

解析：“girl”是名词，需要用形容词来修饰，“carefully”是副词不能修饰名词，“careful”是形容词。

高考英语短文改错动词的非谓语形式错误练习题30题(带答案)1. I want go shopping this afternoon.A. want goB. want to goC. wants goD. wants to go答案解析：B。

A 选项缺少to；C 选项want 后应接动词不定式且人称错误；D 选项人称错误。

want to do sth 是固定用法，表示“想要做某事”。

2. He is always busy do his homework.A. busy doB. busy doingC. busy to doD. busy with do答案解析：B。

A 选项缺少doing；C 选项be busy to do 表述错误；D 选项with 后应接doing。

be busy doing sth 是固定用法，表示“忙于做某事”。

3. She hopes become a doctor in the future.A. hopes becomeB. hopes to becomeC. hopes becomingD. hopes in becoming答案解析：B。

A 选项缺少to；C 选项hope 后不接doing；D 选项hope in becoming 表述错误。

hope to do sth 表示“希望做某事”。

4. My mother asks me study hard.A. asks me studyB. asks me to studyC. asks me studyingD. asks me for study答案解析：B。

A 选项缺少to；C 选项ask sb doing 错误；D 选项ask sb for doing 错误。

ask sb to do sth 表示“要求某人做某事”。

5. We decide go on a trip this weekend.A. decide goB. decide to goC. decide goingD. decide in going答案解析：B。

高考英语短文改错连词错误练习题30题1. I like apples and bananas, or I don't like oranges.and改为but。

解析：前面说喜欢苹果和香蕉，后面说不喜欢橙子，是转折关系，应该用but。

2. He is tall and handsome, but he is not friendly.and改为but。

解析：前面说他又高又帅，后面说他不友好，是转折关系，应该用but。

3. You can eat an apple or a banana.or改为and。

解析：这里是选择关系不明确，可以吃苹果也可以吃香蕉，是并列关系，应该用and。

4. I want to go shopping and watch a movie.and改为but。

解析：一般情况下，去购物和看电影不是必然的转折关系，这里可能是想表达想做一件事但不能同时做另一件事，所以用but。

5. She is good at singing and dancing, or she can't play the piano.or改为but。

解析：前面说擅长唱歌跳舞，后面说不会弹钢琴，是转折关系，应该用but。

6. He studies hard and gets good grades.这句话没有错误。

7. I like reading books or listening to music.or改为and。

解析：喜欢读书和喜欢听音乐是并列关系，应该用and。

8. You can choose this one and that one.and改为or。

解析：这里是选择关系，应该用or。

9. She is beautiful and kind, but she is sometimes shy.这句话没有错误。

10. I want to go to the park and fly a kite.and改为but。

八年级英语短文改错练习题40题(答案解析)1. I am interesting in reading books.A. interestingB. interestedC. interestD. interests答案：B。

解析：本题考查形容词的用法。

interesting表示“令人感兴趣的”，通常用来形容事物；interested表示“感兴趣的”，用来形容人。

这里说“我对读书感兴趣”，应该用interested。

这涉及到形容词的语义辨析知识点。

2. He go to school by bike every day.A. goB. goesC. goingD. gone答案：B。

解析：本句主语是he，是第三人称单数，在一般现在时中，动词要使用第三人称单数形式。

go的第三人称单数形式是goes。

这里考查的是一般现在时中第三人称单数作主语时动词的形式，属于主谓一致的知识点。

3. There was a lot of people at the concert last night.A. wasB. wereC. isD. are答案：B。

解析：句中的主语是a lot of people，是复数概念。

在一般过去时中，be动词的复数形式是were。

原句中使用was是错误的，这里考查的是一般过去时中主谓一致的知识点。

4. My mother has cook dinner already.A. cookB. cooksC. cookedD. cooking答案：C。

解析：本句是现在完成时，其结构是have/has + 过去分词。

cook的过去分词是cooked。

原句中使用cook是错误的，这里考查的是现在完成时的动词形式，涉及到现在完成时的语法结构知识点。

5. The book were written by a famous writer.A. wereB. wasC. areD. is答案：B。

解析：句中的主语the book是单数，在一般过去时的被动语态中，be动词应该用was。

短文改错练习 第一篇：短文改错练习 短文改错专练：March 29th, Dear Diary, I’m writing this at my room.It’s almost midnight and I have to getting up early tomorrow, but I can’t sleep.I’m thinking about my future!Every day, my parents asks me, “What do you want to be when you grow?” The problem is: I don’t know!My mom always says, “Be a doctor!” And she doesn’t understand — to be a doctor, you have to study for a long, long time and that’s not her idea of fun.Also I’m really bad at biology at the school.My dad says, “Be a pilot!” Is he crazy? He knew I hate flying! Now I’m getting tiring, so I’m going to bed.I can think about my future in bed.I get my best ideas when I’m lain down.I have known my friend Rebecca for a long time.We firstly met at a friend’s birthday party five years before.We found out that we both liked singing and dancing, so I invited Rebecca over to my place.We listened to the music together and soon became best friends.Three years ago, Rebecca’s parents invited me go on holiday with them.It is great.We spent three wonderful weeks in a little cottage.Rebecca and I loved walking along the beautifully beach.We took a lot of photos and had a lot of funs.Last year, Rebecca’s father changed her job, and they moved to other town.Since then we haven’t seen each other very much, but we’ve talked in the phone and we’ve written emails to each other.Dear Joe, How are you? Thanks to your post — good to know when you’re OK.I’ve got news too.I’m going on holiday next weeks with my brother and Anna, a friend from school.We’re going to stay on a farm with four days!We’re going to look after the animals and doing some horse-riding.I’m sure I’ll love it.You know how crazy I am about the animals!I want to learn all about the cows or the horses.I hope I will have some times to go walking in the hills, too.Well, right now I’m going to finish homework — lots to do before the holiday!I’ll write to you when I get back to telling you about my holiday.Yours, 4 Nadia People had always been interested in bees.This interest may have begun with the honey what bees make.In the fact, it has been found that people have been eating honey for thousand of years.In the more recently past, people were interested in the way bees made honey.They admired the way bees seemed to working so hard.Some languages even developed expressions about people working like bees.In English, for example, we talk with a “busy bee”.Now scientists has a new reason to be interested in bees.They have discovered that bees able to communicate with each other.Research has revealed some surprised facts about this, but there are still many mysteries.Yesterday afternoon, I took the No.6 bus to go home.It was crowded on the bus, and I had listened to music by my earphones.Suddenly I saw the name of the bus stop that I should get off, so I got off the bus in hurry.When I arrived home, I realized that I had left my bag on the bus.My ID card and ten books were in the bag.I was worried and eager to finding it, so I went to the bus companies for help.Fortunate, at the Lost and Found, I see my bag.I wanted to thank the person who had found my bag, and the staff there said the person hadn’t left his name.How a good man! I read an interested piece of news on a newspaper today.According to Professor Richard Wiseman, only less than a quarter of the British achieved their New Year goals because they do it in the wrong way.He studied 700 volunteers who made a wide ranges of New Year goals, including quitting smoking, losing the weight, or gaining a qualification.Just 22 percent of the participants managed to meeting their goals or described their progress like “very successful.” The reason so much failed was that they took the wrong approach and led by self-help books in the wrong way.They tended to spend a lot of time on thinking about the “bad things” what would happen if they did not achieve their goals instead of taking action.Last weekends, I went shopping by myself.It was a sunny day and I feel very happy.When I had bought anything I needed, I went to the bus stop to take a bus.Unfortunately, there were too much people at the bus stop.Then it was my turn to get on, there was no room.I had to wait the next bus.Suddenly, it started to rain.I had no choice but to call a taxi.Half way through the journey, the taxi was broke down.I was filled with angry when I saw an emptier bus go by.Finally, I decided to walk home in a rain.What an unlucky day! My name is Li Hua and I wanted to be class monitor.I am responsible, sociable, or easy-going.I enjoy serving others.Additionally, I have vary interests.I love singing and playing the drums as well soccer.I am also a good listener and be always open to different opinions.I am confident that I can do the job good.Being a student myself, firstly, I will create an academic atmosphere so that everyone in our classes can improve their studies.For those students who is falling behind, I will find ways to help them to catch up.Secondly, I will serve as a bridge among teachers and students.Finally, I will arrange parties so we can relax.I believe I am the right person to this post.Dear Sarah, I’m writing because I want to apologize to what I did last week.I’m really sorry.I know we said 8:30, and I would’ve gotten here on time if everything hadn’t gone wrongly.I was late because my

中考英语短文改错练习题40题带答案解析1. I have two book.答案：books。

解析：名词单复数错误。

前面有two，book 应该用复数形式books。

涉及语法规则是可数名词在表示两个及以上数量时要用复数形式。

2. He go to school by bike every day.答案：goes。

解析：动词时态错误。

句子描述的是习惯性的动作，应该用一般现在时，主语he 是第三人称单数，动词要用goes。

涉及语法规则是一般现在时中第三人称单数作主语时动词的变化形式。

3. There are a lot of peoples in the park.答案：people。

解析：名词单复数错误。

people 本身就是复数概念，表示“人、人们”，不能加s。

涉及语法规则是people 的特殊用法。

4. She play basketball after school.答案：plays。

解析：动词时态错误。

句子描述的是习惯性的动作，应该用一般现在时，主语she 是第三人称单数，动词要用plays。

涉及语法规则是一般现在时中第三人称单数作主语时动词的变化形式。

5. My parent is a teacher.答案：parents。

解析：主谓一致错误。

parent 表示“父亲或母亲”，这里应该用parents 表示父母双方。

涉及语法规则是主谓一致中根据实际情况选择合适的名词形式。

6. I have a good friend. She name is Lily.答案：Her。

解析：代词错误。

修饰名词name 应该用形容词性物主代词her。

涉及语法规则是形容词性物主代词的用法。

7. There is some book on the table.答案：books。

解析：名词单复数错误。

some 后面跟可数名词复数或不可数名词，这里book 应该用复数books。

涉及语法规则是some 的用法及可数名词单复数。

人教版八年级英语短文改错练习题40题【答案解析】 1. I have two book. book is singular while it should be plural. Correction: I have two books. Books is the plural form of book. When we say two book, it is incorrect as we need to use the plural form to match the number two.

2. She is a beautiful girl. She have long hair. have is incorrect as it should be has for third person singular. Correction: She has long hair.

In English, for third person singular (he, she, it), we use “has” instead of “have”. 3. My father go to work by car every day. go is incorrect as it should be goes for third person singular. Correction: My father goes to work by car every day.

For third person singular subjects, the verb form is usually “goes” in present simple tense.

4. There are much people in the park. much is incorrect as it should be many for countable nouns. Correction: There are many people in the park.

高三英语短文改错名词所有格错误练习题30题(带答案)1. I went to my friend's house yesterday. I noticed there were two cats in the friends' yard.答案：将“friends'”改为“friend's”。

解析：这里表示的是我朋友一个人的院子，是单数名词所有格，直接在名词后加's。

2. The students' desks in this classroom are very old. But the teachers desks look new.答案：将“teachers desks”改为“teachers' desks”。

解析：这里表示老师们的桌子，teacher是复数，复数名词的所有格是在复数名词后加'。

3. My mother bought some books at the bookstore. The book's covers are very beautiful.答案：将“book's”改为“books'”。

解析：这里指的是多本书的封面，book要用复数形式，复数名词所有格在复数后加'。

4. The library is near the school. The library's door is always open.答案：正确。

解析：这里library是无生命的物体，用's表示所有格是正确的用法。

5. We visited the Smiths house last week. It was a big and beautiful house.答案：将“Smiths house”改为“Smiths' house”。

解析：表示史密斯一家的房子，Smiths是复数形式表示一家人，复数名词所有格加'。

高考英语短文改错专项训练（含答案）1.【2016·全国新课标I】短文改错（10 分）M.uncl.i.th.owne.o..restauran.clos.t.tha..liv..Thoug.no.ver.bi.,bu.th.restauran.i. popula.i.ou.are..I.i.alway.crowde.wit.customer.a.mea.time..Som.peopl.eve.ha.t. wai.outsid.M.uncl.tell.m.tha.th.ke.t.hi.succes.i.honest.Ever.da.h.make.sur.tha.fr in.fo.cooking.M.uncl.say.tha.h.neve.dream.be comin.ric.i.th.shor.perio.o.time.Instead.h.hope.tha.ou.busines.wil.gro.steady.2.【2016·全国新课标II】短文改错（共10小题, 每小题1分, 满分10分）ing.M.classmate.an..ar.talkin.abou.ho.t.d.durin.th.holi forta bl.bu.ther.i.n.nee.t.spen.money.Bu.i.tha.case.w.wil.lear.littl.abou.world.I.w.g .o..tri.abroad.w.ca.broade.yo.vie.an.gai.knowledge.w.canno.ge.fro.books.S om.classmate.sugges.w.ca.g.t.place.o.interes.nearby..though.tha.i.i..goo.id ea.I.doe.no.cos.many.ye.w.ca.stil.lear..lot.3.【2016·全国新课标III】短文改错（共10小题；每小题1分, 满分10分）.Th.teenag.yea.fro.1.t.1.wer.th.mos.difficul.tim.fo.m..The.wer.als.th.bes.an.wor s.year.i.m.lif..A.th.first..though..kne.everythin.an.coul.mak.decision.b.yourself.However.m.parent.didn’.see.t.thin.such.The.alway.tel.m.wha.t.d.an.h o.t.d.it.A.on.tim...eve.fel.m.parent.couldn’.understan.m.s..hope..coul.b.fr eel.fro.them..showe.the..wa.independen.b.wea.strang.clothes.No..a.leavi st..wil.b.o.m.own.bu..stil.wan.t.hav.m.parent.t.tur.t.wh eneve.nee.help.4.【2016·四川】短文改错（共10小题；每小题1分, 满分10分）I.i.Mother’.Da.today.Thoug.it’..wester.festival.it’.popula.i.Chin.now. Mo.ha..full-tim.job.s.sh.ha.t.d.mos.o.th.houseworks.Sh.i..grea.mother.Bot.Da. o..planne.t.d.somethin.o.Mother’.Day.W.ge.u.earl.i.th.morning.Da.cleane.th. house.an.the.wen.o.shopping.Whe.h.cam.back..foun..bunc.o.flower.i.he.hand. .aske.Mo.t.sta.i.th.sittin.roo.an..cooke.i.kitchen.Th.dishe.wha..cooke.wer.Mom ’.favoritiest.A.dinner.w.sai.t.her.“Happ.Mother’.Day！”Mo.wa.gratefu.an.moving.5.【2016·浙江】短文改错（共10小题；每小题1分, 满分10分）.Whe..wa..ver.youn.children.m.fathe.create..regula.practic..remembe.wel.year.l ate.Ever.tim.h.arrive.hom.a.en.o.th.da.,we’.gree.he.a.th.door.H.woul.as.wh.w..The.h.an.m.mothe.woul.hav.ha..drin.whil.sh.prep are.dinne.an.the.woul.tal.abou.hi.da.an.hers.Whil.the.chat.m.fathe.woul.lif.m.s iste.an.m.u.t.si.i.th.to.o.th.fridge.I.wa.bot.excite.an.frightenin.t.b.u.there！My sister and I thought he was so cool for putting us there.2015年高考试题分项解析之专题----短文改错1.【2015·陕西】短文改错（共10小题；每小题1.5分, 满分15分）s.week..wante.t.d.anythin.specia.fo.hi.a.hi.retireme n.party.M.mu.make.th.bette.biscuit.i.th.world.s..decid.t.as.he.fo.help.Mu.taug h.m.som.basi.ste.o.baking..insiste.o.doin.mos.o.th.bakin.myself..though.th.bis cuit.wer.reall.well.M.onl.mistak.wa.tha..droppe.som.o.th.floo.afte..wa.packin.t he.up.At a party, my coach, with a biscuit in his mouth, asked surprisingly who made them and joked, “I might have to retire again next year just get some more of these biscuits.”My favorite picture at the party is of my coach and me enjoy the biscuits with happy laughter! 2.【2015·四川】短文改错（共10小题；每小题1.5分, 共15分）Hi, Janice,It's been a month since I came to this new school and I really want sharewith you some of theproblems I have been experiencing.s.time..mad.thre.ne.frien.here.W.han.ou.togethe.durin.lunc.andafte.school.We'v.bee.spendin..lo.o.tim.sin.i.karaok.bars.It'.bee.thre.Saturdays no.an.i.reall.cost.m.many.An..starte.t.se.thi.a..time—wastin.activity.I.fac.,.don’.lik.t.g.anymore.s.I’.afrai.I’l.los.thei.friendship.Ho.d.yo.thin..shoul.do.I.yo.ar.m.,woul.yo.tal.t.him?Please help with me and give me some advice.G race3.【2015·浙江】短文改错（共10小题；每小题1分, 满分10分）M.ol.classroo.wa.interestin.becaus.thre.sid.o.th.classroo.wer.mad.fro.glass..enjoye.si.clos.t.th.window.an.lookin.a.th.view.O.th.left-han.sid.o.th.class..coul.eas.se.th.footbal.field.I.th.mornings.i.wa.ful.o.student.exercising.Th.vie.fro.th.bac.o.th.classroo.i.als.splendid.Clos.t.th.schoo.ther.wa..beautifu.par.wit.man.tree.aroun.them.Farthe.i.th.distance..coul.no.enjo.th.vie.o.snow.mountains.O.th.ri gh.sid.o.th.clas.wa.th.road..wa.alway.intereste.t.se.th.driver.i.hurr.i.th.morning. Th.positio.o.th.classroo.wit.it.vie.mad.m.fel.lik..wa.dreaming.I..wa.onl..chil.wh e..studie.i.tha.classroom..wil.neve.forge.it.4.【2015·新课标全国II】On.da..littl.Ton.wen.t..shoppin.cente.wit.hi.parent.I.wa.ver.crowded.Ton.sa..to. o..sho.window.H.like.i.s.ver.muc.tha.h.quickl.walke.int.th.shop.Afte.look.a.th.t o.fo.som.time.h.turne.aroun.an.foun.wher.hi.parent.wer.missing.Ton.wa.scare. ter.T on.sa.parents.Mo.said,“Ho.nic.t.se.yo.again.Da.an..wer.terribl.worried..Ton.promise.he.tha.thi.woul. neve.happe.again.5.【2015·新课标全国I】Whe..wa..child..hope.t.liv.i.th.city..thin..woul.b.happ.there.No..a.livin.i..city.bu.. mis.m.hom.i.countryside.Ther.th.ai.i.clea.o.th.mountain.ar.green.Unfortunatel y.o.th.developmen.o.industrialization.th.environmen.ha.bee.polluted.Lot.o.st udie.hav.bee.show.tha.globa.warmin.ha.alread.becom..ver.seriousl.problem.T h.air.w.breath.i.i.gettin.dirtie.an.dirtier.Muc.rar.animal.ar.dyin.ou..W.mus.foun. way.t.protec.you.environment.I.w.fai.t.d.s.,we’l.liv.t.regre.i..2014年高考试题分项解析之专题----短文改错1.Correctio.1(2014课标全国Ⅰ)Nearl.fiv.year.before.an.wit.th.hel.b.ou.father.m.siste.an..plante.som.cherr.tom atoes(圣女果)i.ou.bac.garden.Sinc.then—fo.al.thes.year—w.ha.bee.allowin.tomatoe.t.self-see.wher.the.please.A.result.th.plant.ar.growi n.somewhere.Th.fruit.ar.smal.i.size.bu.juic.an.taste.Ther.ar.s.muc.tha.w.ofte.sh ar.the.wit.ou.neighbors.Althoug.w.allo.tomat.plant.t.gro.i.th.sam.plac.yea.afte .year.bu.w.hav.neve.ha.an.diseas.o.insec.attac.problems.W.ar.growin.wonderf ull.tomatoe.a.n.cost!2.Correctio.2(2014课标全国Ⅱ)M.drea.schoo.start.a.8:3.a.m.an.end.a.3:3.p.m.The.ar.thre.lesson.i.th.mornin.a n.tw.i.th.afternoon.W.didn’.nee.t.d.s.man.homework.Therefore.w.hav.mor.tim.wit.after-schoo.activities.Fo.example.w.ca.d.readin.fo.on.an..hal.hou.an.pla. sport.fo.on.hou.ever.day.M.drea.schoo.loo.lik..bi.garden.Ther.ar.al.kind.o.th.flower.an.tree.aroun.th.clas k.listenin.music.Th.teacher.h er.ar.kin.an.helpfully.The.ar.no.onl.ou.teacher.bu.als.ou.friends.3.Correctio.3(2014浙江).wa.takin..trai.t.London’.Victori.Station..ha.notice.tha.th.carriag.wa.nois. an.fille.wit.people.e.t.chec.ou.tickets..passenge.realize.h.couldn’.fi n.hi.ticke.bu.becam.quit.upset.The.everyon.i.th.carriag.bega.searchin.th.ticket .whic.wa.eventuall.foun.unde..sea.severa.row.fro.hi.owner.Th.perso.wh.foun..ti cke.smile.wit.pleasur.a.hi.success.N.on.i.th.carriag.ha.previou.spoke.t.o.eve.notice.th.ticket-owne.before.Ye.the. ha.s.quickl.offere.th.stranger.thei.help.I.w.coul.sho.concer.t.other.o.need.th.w orl.woul.b..bette.plac.t.liv.in. 4.Correctio.4(2014辽宁)Dear Jeremy and Alice,Althoug.we’v.bee.delighte.t.hav.yo.a.neighbors.we’.I..word.you.dog—Cleo.We’v.calle.severa.tim.abou.Cleo’.earl.mornin.barking.I.i.difficul.t.understandin.w h.sh.bark.ever.minut.she’.outside.Th.earl.mornin.barkin.hav.bee.disturbin.u.a.w.ar.ofte.u.al.nigh.wit.th.baby.Beside.Cle.tend.t.bar..averag.o.si.hour..day.Thi. mornin.sh.start.barkin.eve.befor..o’.considerin.ho.closel.th.house.are.We appreciate our apologies and goodwill, but we hope that you can figure a good way of settling the matter.Sincerely,Jack and Rose5.Correctio.5(2014四川)Hello.boy.an.girls.Today..a.goin.t.tal.wit.wha.yo.shoul.d.whe..fir.alar.g.off.I.yo.h ea.th.alarm.stan.i.lin.a.th.doo.an.wai.you.teache.t.lea.yo.outside.Sta.clos.t.you. teache.an.classmate.Don’.pani.o.ge.ou.o.line.an.tryin.t.remai.quie.an.calmly. .an.pu.ou..fire.I.it’..fals.alar.an.ther.i.n.fire.you.teach e.wil.lea.u.bac.t.th.classroom.I.yo.notic.tha.whe.someon.i.missin.an.hurt.tel.yo u.teache.immediately.高考英语短文改错专项训练(答案解析)1.【2016·全国新课标I】短文改错（10 分）【答案】1.tha.→wher..2.but去.. 3.ha.→hav. 4.honest.honest. 5.or.an.in.→use..7.becoming前加o..8.th.→.9. our.hi..10.stead→steadil.【归纳总结】在英语中though、although、while或者as等引导的让步状语从句不和but连用；连词because不和so连用；此外, return不和back连用。

高三英语短文改错名词所有格错误练习题30题1. In the school's library, there are many bookshelfs.A. bookshelfsB. bookshelvesC. bookselfsD. bookselves答案：B。

解析：本题考查名词复数形式。

原句中bookshelfs是错误的复数形式，bookshelf的复数形式是bookshelves，不存在A、C、D选项中的形式。

2. My sister's - in - law car is very beautiful.A. sister's - in - lawB. sister - in - law'sC. sister in law'sD. sister - in - laws答案：B。

解析：本题考查复合名词的所有格形式。

表示“嫂子（弟媳）的”应该是sister - in - law的所有格形式sister - in - law's，A选项形式错误，C选项缺少连字符，D选项是复数形式，不符合题意。

3. The childrens' toys are all over the floor.A. childrens'B. children'sC. childrensD. childs'答案：B。

解析：本题考查名词所有格。

child的复数形式是children，其所有格形式是children's，A选项childrens'形式错误，C选项是复数形式不是所有格，D选项childs'中child的复数形式书写错误。

4. We visited the Smiths' house, it was very big.A. Smiths'B. Smith'sC. The SmithD. The Smiths答案：A。