用所给单词的适当形式填空。
1. I write to my good friend _____ (one) a month.
2. You look _____ (worry). What's wrong?
3. The children talked and laughed _____ (happy).
4. There may be some _____ (danger) animals there.
5. The fat woman is a _____ (visit).
6. The young man _____ (not need) any help.
7. What _____ he _____ (look) for?
8. You'd better _____ (go) out for a walk.
9. I'm hungry. I want _____ (buy) some cakes.
10. He usually _____ (watch) TV after supper.
11. _____ (be) there any orange in the shop?
12. I like _____ (swim), but she likes _____ (sing).