题目内容
-I wonder if I ________ smoke here.
-No, you ________.Didn't you see the sign“No smoking”?
[ ]
A.
can; needn't
B.
may; mustn't
C.
shall; won't
D.
can; dare not
答案:B
解析:
解析:
|
may用于征求对方许可。mustn't表示“不准;禁止”。 |
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