---I’msorrythatI’vekeptyourbookforsolong. Ipromisetoret...
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问题详情:
---I’m sorry that I’ve kept your book for so long. I promise to return it soon.
---No, you _________. Just take your time.
A. can’t B. mustn’t C. shouldn’t D. needn’t
【回答】
D
知识点:情态动词
题型:选择题