题目内容
--- You see, a man is cutting a tree on the moon.
--- It be true. The teacher says there is no air on the moon.
A.can't B.may not C.shouldn't D.mustn't
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题目内容
--- You see, a man is cutting a tree on the moon.
--- It be true. The teacher says there is no air on the moon.
A.can't B.may not C.shouldn't D.mustn't