3-4周单词短语听写

Videophones get the call
Videophone 可视电话
Videophones are now _____ in British Columbia, Canada. For about _____ a month, you can _____ and _____ the other person at the end of the ____ line and even call home and use the video camera to _____ up on the kids or valuables值钱物品.
A subscriber用户must have a touch-tone telephone按键式电话机, a standard telephone line and a _____ or _____ to connect to the device, which can pan摇动, tilt倾斜and zoom上升. If a VCR is ______, the videophone call can also be _______.
But don’t worry that the cameras will start rolling as soon as you _____ up your videophone. Both parties must decide to activate激活，打开the _______. So you can still make _____ at your _____ without them seeing.
The videophone can also be activated from outside the home for those who want to check whether they’ve been _____ or if the kids are _____. Subscribers dial home, punch in a security code输入密码and watch. The _______ videophone must be left on for this to happen.
The device has been used by _____ care professionals to check up on patients, by grandparents who want to see their _____ and by companies for _______ job candidates.
The videophone technology isn’t all new. Videophones were around
_____ years ago when German engineers set up _____ booths电话亭in Berlin and Leipzig. People could make calls for only ______ the cost of a _______ conversation. AT&T also introduced videophones at the ______ World Fair世界博览会, but the idea never took off.。