ThelasttimeI______MrLiu,he______anarticleintheroom.   ...

问题详情：

 The last time I ______ Mr Liu, he ______ an article in the room.

     A. had seen; was writing              B. saw; wrote        C. had seen；wrote              D. saw；was writing

【回答】

D

知识点：动词时态与语态

题型：选择题