英语达人速度
------------Do you knoe Jane?
------------Yes,I first met her three years ago,she() at a school at thar time
A worked B was working C has worked
为什么用B?不能用A吗?
人气：366 ℃ 时间：2020-05-02 21:31:22
解答
不能用A,因为后面跟了一个表示过去进行时时态的词组 at that time.这个词组常与过去进行时态连用,同类的还有at that moment.
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