用can,can't,must或have to 填空
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用can,can't,must或have to 填空
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can't can can't Can have to Can
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can't have to must
用can,can't,must或have to 填空
用can,can't,could,may,must,have to填空.
用must have been/done或can*t have been/done 改写句子
用must,can,can't,needn't,has to,have to,had to,will,造句
must have done,must do,can't have done,can't do的区别
can can't must mustn't have to don't have to的区别
_____you make such a terrible noise?用must,have to,can,can't,could,could't,may,might填空
用have to,must,can,can't填空:I____read a book before I____wath TV.为什么第一个空填must,第二个空填can,
用must或mustn't,can或cannot……讨论中国和其他国家的习俗
1.He ___ Mr.Black.He is taller.(用can't,can't be,must,must be,don't have to,1.He ___ Mr.Black.He is taller.(用can't,can't be,must,must be,don't have to,needn't其中的一个填空,请说明一下选这个词的理由)2.You can _______ the teacher
can,can't,must,mustn't,needn't,be allowed to,have to,don't have to的区别
be,must be,can't have been,must have been吗
He can't have been.He must have been.不是说单三用has吗?这里怎么用的have?
用Must be/do或Can't be/do改句子.
He can't find his key.He ---------- them.A.must lost B.must have been lost C.must have lost
can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may have done
can’t +have done
People____keep their dogs on a lead in the street用must,have to,can,can't,could,could't,may,might填空