用括号内所给单词的适当形式填空。
1. It's interesting _____ (help) my mother do the housework.
2. He made a kite _____ (make) his daughter happy.
3. My dream is _____ (be) a scientist one day.
4. We went to the theatre _____ (watch) a play
.
5. There are many ways _____ (save) animals in danger.
1. to help
2. to make
3. to be
4. to watch
5. to save