13．It might seem that speaking 　　　　(polite)is more difficult than being direct．

12．This kind of TV show is not 　　　　　(suit)for young children．

11．If I had lots of money，I 　　　　　(help)the poor people．

10．The tall boy is very thin．He w　　　　 only 55 kilograms．

(C)根据句意，用所给单词的适当形式填空。

9．There are many reporters outside waiting to i　　　　 the famous singer．

8．We live next door，so we are n　　　 ．

7．He o　　　 me a glass of hot water when I was at his office．

6．Mary is outgoing and friendly．So she has a large c　　 of friends．

5．Natural food is much 　　　　(健康)than processed food．

(B)根据句意和所给的首字母提示，补全句子中的单词。

4．The 　　　(主任)of the local zoo says that three monkeys escaped from the zoo．