1. He couldn't tell the time because his watch has stopped.
2. I haven't seen my brother since he went to New York 2 years ago.
3. I wonder when shall I see Mary next time.
4. Nobody likes when it's raining.
5. The museum is visited by thousands of people everyday.
6. The pop singers have arrived at the airport and are welcomed by thousands of fans.
7. They were still building that bridge when I was here last year.
8. Tom said never went to Disneyland.
9. We wondered if he will take part in the competition next week.
10. When he will arrive at London, he will write you a letter.
1)goes;
2)climbes;
3)doesn't watch;
4)has been watching.