Ответ:

1. Who would you phone, if you had a problem?

2. What would you do, if you lost your schoolback?

3. If you didn't find my schoolback, I would buy another one.

4. If someone stole my computer, I would go to the police.

5. I would be unhappy, if you didn't come to my party.

6. If I had a serious problem, I would call my mum.

7. If he had a girlfriend, I wouldn't love him.

Объяснение: