In the library , you keep quiet.
A.may | B.might | C.must | D.can |
更新时间:2016-01-15 15:46:17
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【推荐1】It is a rule that we ________ keep quiet when reading in the library.
A.can | B.may | C.must |
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【推荐2】—Must I start now?
—No, you_______________.
—No, you_______________.
A.mustn't | B.can't | C.needn't | D.must |
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