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1. He couldn`t answer the question because he (to think) about his problems for the last 15 minutes.

2. She (to talk) for some time when I (to stop) her.

3. It was eleven o`clock. He (to sleep) for ten hours.

4. While she (to look) at Khristy, he (to look) at Alice.

5. At last they (to deliver) me my order which I (to wait) for 2 weeks.

6. Their family (to visit) the same doctor for years.

7. When I (to come) to see him, he (to feel) badly.

8. He (to look) for a house to rent for a month before he (to find) the one he (to like).

9. At last they (to meet) last month. They (not to see) each other for a long time.

10. Anna (to look) tired in the morning. She (to prepare) for the conference the whole night.

11. When the children (to come) home yesterday, their hair (to be) wet because they (to swim).

12. Last Friday I (to see) him in the park. He (to jog).