组卷网 > 高中英语综合库 > 语法 > 词法 > 情态动词 > 情态动词+have done > needn’t have done的用法
题型:单项选择 难度:0.65 引用次数:2255 题号:3149917
I ______ have worried before I came to the new school, for my classmates here are very friendly to me.
A.mightn’tB.mustn’t
C.needn’tD.couldn’t
2015·天津·高考真题 查看更多[25]

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