问题

Whose purple coat is this—It be Lily’s. Hers is red. It _ be Lucy’s.She likes purple.

A:must; may
B:may; must
C:can’t; may
D:mustn’t; must

正确答案是：

同类题型

－Bob failed inthe exam again－He ________it；he never worked hard

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Jack is _______honest boy， and he has ____good sense of humour.

It is my ___ to talk to her.

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