动词填空：
1. My hometown _________ (change) a lot since I was 8 years old.
2. Noise pollution _________ (be) also a big problem now.
3. They will go _________ (boat) tomorrow.
4. Ben ________ (clap) his hands while the performers were marching across the park.
5. I saw Lily ________ (fly) the kite in the park at 10 this morning.
6. It's highly possible that I'll go fishing instead of ________ (swim).
7. You use this set of keys for _________ (type).
8. I ________ (tell) that there would be a meeting the next week.
9. Miss Gao said that the Red Cross ________ (start) in 1863.
10. It is necessary for you _________ (walk) the dog in the park once a day.