1. 根据首字母或括号中所给词的提示写出单词。

1. （1） So many people have caught a cold recently. It's p because of the bad air.
   

3. （2） We don't see a film in the open air any more. We often go to the c.
   

5. （3） Is there a toilet （near）? I'm in great need of it.
   

7. （4） China has the largest p in the world.

9. （5） 1 haven't found my pet dog y.