------“Where was Li Ming last night ?” ------“I saw him ____ his homework in the

题干

------“Where was Li Ming last night ?”
------“I saw him ____ his homework in the classroom.”

A．was doing

B．did

C．doing

D．to do

上一题下一题 0.64难度单项选择更新时间:2013-11-07 06:17:32

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