用情态动词can，may， must的适当形式填空。

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_______.

句型转换。
1. Someone is following us. (改为反意疑问句)
    Someone is following us, _____?
2. Maybe he knows the way to the station.(改为同义句)
    He _____ the way to the station.
3. We need to make some money for the team. (改为否定句)
    We _____ need to make _____ money for the team.
4. I spent a dollar on the bag. (改为同义句)
    _____ me a dollar.
5. How much is your skirt?(改为同义句)
    _____ your skirt?