1. 单词拼写(单句首字母填空)。

1. （1） He dressed up as a Father C.

3. （2） Washington D.C. is a beautiful modern city and it's the c of America.

5. （3） It is very i for us to learn English well.

7. （4） You should always knock at the door before you e a room.

9. （5） A trip for two to Paris! How can you be so l to win such a big prize?