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题目
what were you doing yesterday?等于what what did you do yesterday?

提问时间:2020-06-13

答案
不等于!
what were you doing yesterday?
意思是:你昨天正在干什么?
强调过去正在进行的动作.
what did you do yesterday?
意思是:你昨天干了说明?
只是强调过去的动作.
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