for+一段时间和yesterday在一个句子里用什么时态?

问题描述:

for+一段时间和yesterday在一个句子里用什么时态?
He ( ) for ten hours yesterday.
A worked B has worked

答案:A
解释:这里主要看yesterday.
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有不会的可以再问我:)poet的复数是什么?He was an( )(honour)of our schoolpoets honourpeople() flowers ( ) decorate their houses.=people decorate their houses with flwoers.camping ( ) the lake(介词)use, toby