19.Tom _____ into the house when no one _____.

19.Tom _____ into the house when no one _____.
A.slipped; was looking B.had slipped; looked
C.slipped; had looked D.was slippping; looked
为什么啊 如果说tom slipped into the house when no one looked.这样可不可以?
大爱 1年前 已收到1个回答 举报

gaobenshi 春芽

共回答了14个问题采纳率:78.6% 举报

A. slipped; was looking
when no one was looking
当没人在看时,汤姆溜进了房子.
没人在看是一段时间,汤姆溜进了房子的动作插入进这段时间.

1年前

5
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