他说他以前见过你。 He said that he __h_a_d_s_e_e_n_ (see) you before.
2.过去完成时词可以表示过去某一时刻之前发生的动作或呈现 的状态,这一动作一直持续或将继续下去。
到了六点钟为止,他们已经工作了八小时了。 By six o’clock they _h_a_d__w_o_r_k_e_d__ (work)for eight hours. 我到广州时,他在那里很长时间了。 When I came to GZ , he __h_a_d_b_e_e_n__(be) there for a long time.
Grammar Focus
1.当我到学校时,我意识到我把背包忘在家里了。 When I __g_o_t_to___ school, I realized that I _h_a_d__le_f_t__ my backpack at home. 2.我回到学校时,铃已经响了。 By the time I _g_o__t _b_a_c_k_ to school, the bell _h_a_d__ru_n_g__.
2. The coffee became cold. I put cream (n. 奶油) in the coffee. B__e_fo_r_e_I_p_u__t _c_re_a_m__i_n_t_h_e__co_f_f_e_e_, _th_e__c_o_ff_e_e__h_a_d_b_e_c_o_m__e_c_o_l_d_. ______
4. I completed the work for my boss. The workday (n. 工作日) ended. _I_h_a_d_c_o_m__p_l_e_te_d__t_h_e_w__o_rk__fo_r__m_y__b_o_s_s _b_e_fo__re__th_e__w_o_r_k_d_a_y__e_n_d_e_d_. __