I __work out the maths problem.Lily____know the answer.Let's ask her for help.[ ]A.can'tmustB.can'tmayC.may not ,has to D.have to ,can-初中英语-n多题

◎ 题干

I __work out the maths problem.Lily____know the answer.Let's ask her for help.

[ ]

A.can't  must
B.can't  may
C.may not ,  has to
D.have to ,can

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◎ 解析

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◎ 知识点

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◎ 相似题

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