1. Tom's hair hasn't been cut for 5 months.
2. After we walked for 3 hours, we reached the top of the hill.
3. I and Dave tried to call each other at the same time.
4. While he was doing his test at school, the phone rang.
5. After making a sandwich, Mary sat on the sofa to watch TV.
6. After doing his homework, Dave went to bed.
7. Hardly had he approached the house when the policeman stopped him.
8. As soon as she began to speak, people started interrupting her.
9. Mai last went to the cinema with her friends one year ago.
10. While they were sleeping, the fire broke out.
