问题标题:
Youmustbeverytiredbecauseyou______intheroomfor3hours.A.studied为什么不选A?
问题描述:
Youmustbeverytiredbecauseyou______intheroomfor3hours.A.studied为什么不选A?
刘显著回答:
后面for3hours表示持续,studied一般过去式不能表达这个意思.
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