1. Were you pleased________the progress that your students made?

2. What do you think we can do________(help) the old man?

3. ________is so strange that he should have failed in the exam.

4. There is no greater pleasure than lying on my back in the middle of the grassland£¬________(stare) at the night sky.

5. Hangzhou is an absolutely beautiful place________(visit) during your holiday.

6. Great changes________(happen) since the last time she was there.

7. I always dream of getting________chance to travel around the world and pick up________foreign language.

8. I climbed to the top of the building with my parents£¬________we enjoyed the splendid night scene of the city.

9. Considering that he is so young, there is no sense________(criticize) him.

10. It was not until she took off her dark glasses________I realized that she was a famous star.