题目内容
用动词take, do, make, swim, finish, learn, wash, turn, see, begin, write的适当形式填空
My mother ________ clothes while I ________ my homework last night.
答案:was washing, was doing
解析:
解析:
|
while引导的从句有时表示前、后句中的动作同时发生,有“last night”所以用过去进行时。 |
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