1. (2017八下·深圳期末) 根据句子意思，用所给单词的适当形式填空。

1. （1） You'll have to ask(permit) if you want to go into the office.
3. （2） They often help the(disable) girl with her study because she lost her leg in a car accident.
5. （3） It was the president's second publicto date.(appear)
7. （4） He took out a pair of(scissor) and cut her hair.
9. （5） This book gives a good(describe) of life on farm.
11. （6） Confucius(孔子)created a lot of(think) thousand of years ago.
13. （7） Thesign says"No swimming in me river".(warn)
15. （8） (communicate) with others is an art we should learn.
17. （9） Here are some(base) rules. You must obey them.
19. （10） Which person looks(friendly), the boy or the girl?