题目内容

用情态动词can, may, must的适当形式填空。
1.  —What _______ I do for you?
     —I want some apples.
2.  My father _______ride a bike, but he _______ drive a car.
3.  You are ill,  Tom.  You _______ see a doctor.
4.  Children_______play football in the street.
5.  If you are not careful ,a car _______ hit you.
6. —_______ I come in?
    —Come in, please.
7. A blind man(盲人)._______ see anything.
8.  Please ask the policeman, for he_______know the way to the hospital, I'm sure.
9.  -May I use your telephone?    -No, you_______.
1. can     2. can, can't  3. must
4. mustn't  5. may      6. May
7. can't    8. must      9. can't
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