用情態(tài)動詞can，may， must的適當(dāng)形式填空。

根據(jù)句意提示補(bǔ)全單詞。
1. May I use a ________ if I get lost in the forest.
2. The boy is going ________with his cousin if it is sunny tomorrow.
3. Riding on the roadway is not ________.
4. When you ride on the roadway, it is important to ________ the traffic rules.
5. You should walk your bike across the ________ and in school.

用情態(tài)動詞can， may， must的適當(dāng)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_______.

— May I use your bike? _______ is broken.
— Sure.