用括号内单词的适当形式填空。
1. They don't know why you talked to them so _____ (angry).
2. They will lose _____ (they) if they go down that path.
3. I have only a little _____ (know) of computers.
4. I think this dictionary is _____ (help) for your study.
5. After a day's walk, she felt so tired that she couldn't go _____ (far).
6. The tourists had no _____ (choose) but to wait for the next train.
7. It is a _____ (please) for me to stay with you.
8. The _____ (high) you climb, the more beautiful view you will see.
9. He seems _____ (friend) to everyone here, so we don't like him at all.
10. How can you make yourself _____ (understand) if you cannot express yourself clearly?