1. —What _____ I do for you? 
    —I want some apples.
2. My father _____ ride a bike, but he drives 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 _____ 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. You ________ smoke here. It's dangerous.
2. I haven't got any money with me, so I'll ________ borrow some from my friends.
3. —________ I come in?
    —No, you ________.
4. Tomorrow I ________ go shopping with you if it's fine.
5. You ________ not make so much noise in the hospital.
6. —________ I watch TV this evening, Mum? 
   —Yes, you ________. But you ________ finish your exercises first.
   —All right. ________ I write down all the words in this lesson?
   —No, you ________, but you ________ write down all the new words today.
      You ________ write down the old ones tomorrow.
7. Li Lei isn't in the classroom. He _________ be at the library. Let's go and find him.
8. —Must we hand in our homework today?
    —No, you don't ________.