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I ______ have worried before I came to t...

I ______ have worried before I came to the new school, for my classmates here are very friendly to me.

A. mightn’t              B. mustn’t

C. needn’t              D. couldn’t

 

C 【解析】 试题分析:本题考查情态动词。 结合句意“来这所新学校前我本不需要担心的,因为我在这里的同学都对我非常友好”,可知此处表达“本不需要做某事”。needn't have done 意为“本不需要做某事(但实际上做了)”。mightn't 表示不太确定的否定推测,mustn't 表禁止,couldn't 也表否定推测,但可能性较 mightn't 大。故正确答案为C。 考点:考查情态动词。 【名师点睛】本题考查情态动词。分析此题需抓住后句for my classmates here are very friendly to me.可知此处为本没有必要做某事,mightn’t也许不;mustn’t不允许;couldn’t不可能。再根据句意可以选出正确答案。  
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