Ответ:

1. He must be at the bank.

2. We used to go to town every Saturday when I was young.

3. Peter asked where does Katy live.

4. It's not as easy as I thought.

5. If I'd have left too late, I would have missed the train.

6. It is thought that Shakespeare was the greatest English writer.

7. I shouldn't have eaten this much.

8. The matter was discussed.

9. I wish I worked harder when I was a student.

10. I had my motorbike repaired yesterday.