单项选择 适中0.65 引用25 组卷2284
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 |
2015·天津·高考真题
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The police have been ________the murder for three weeks, and have already found some valuable clues.
A.investigating | B.exchanging | C.subscribing | D.organizing |
For a long time we walked without saying ______ word and eventually Jack was the first to break ______ silence.
A.the; a | B.a; the | C.a;/ | D.the;/ |
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