用所给的单词的适当形式填空。
1. I'm good at _____(swim).
2. Everyone in our class _____(like) to play this game.
3. Mr Li told us _____(not play) on the road.
4. I want to be a doctor when I'm _____(old).
5. That baby is ten _____(month) old.
6. It is difficult _____(improve) yourself.
7. Yesterday my aunt _____(buy) me a good diary.
8. I'll try _____(write) to you quickly.
1. swimming 2. likes 3. not to play 4. older
5. months 6. to improve 7. bought 8. to write