Model 1.
1. They don't have a lot of problems.
2. You don't have a chance to win the prize.
3. She didn't have a good idea where to go.
4. They don't have some English magazines.
5. We don't have breakfast at 8.
6. He doesn't have a brand-new computer.
7. We don't have a lot of friends in Germany.
8. Jane doesn't have two brothers.
Model 2.
1. Do we have a little juice in our glasses? - Yes, we do.
2. Does Ann have enough coffee in her cup? - No, she doesn't.
3. Do they have a large family? - Yes, they do.
4. Does she have lunch at home? - No, she doesn't.
5. Does my brother have a pretty girl-friend?- Yes, he does.
6. Does George have a cat? - Yes, he does.
7. Does John have three children? - No, he doesn't.
8. Does she have two computers? - No, she doesn't.
Model 3.
1. I had two sisters but now I have three sisters.
2. She had many exams but now she has few exams.
3. They had friends in Paris but now they have friends in London.
4. I had a TV set but now I have a VCR.
5. He had many problems but now he has few problems.