WhenJim’smothercamein,he     hishomework. A. isdoing   ...

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问题详情:

WhenJim’smothercamein,he     hishomework. A. isdoing   ...

When Jim’s mother came in, he     his homework. 

A.  is doing      B.  has done      C.  was doing

【回答】

C

知识点:动词和动词短语

题型:选择题

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