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can, could, may和might都可用来表示允许、许可或请求允许、许可,请用can, could, may或might填空。
1.-________(Could, May)I watch TV, Mum?
-Yes, you ________(can, may), but you must finish your homework first.
2.-________(Might, Can)I borrow your bike?
-Yes, you ________(can, may).
3.-________(May, Might)I ask you a question?
-Yes, please.
用may,might,could,must和can't填空
1.He ________ be French because he speaks French so much.
2.You'd better take an umbrella. It ________ rain before evening.
3.I don't know. It ________ be a stick.
4.The phone is ringing, but there is no answer. She ________ be at home.
5.Listen to the laughter. They ________ be enjoying themselves.
查看习题详情和答案>>—________ I smoke here?
—No. You are not allowed to smoke in public places.
A. Could B. Must C. May D. Might
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