1. (2016九上·庆元期中) 用方框中所给单词的适当形式填空。每词仅用一次，每空一词。

drive      allow         polite       since        public

1. （1） I have made a lot of good friends  I came to this school.

3. （2） Linda used to be too shy to speak in , but now she is outgoing.

5. （3） The man asked , "Could you please tell me where the bank is?"

7. （4） If you want to get there quickly, you should avoid  in the center of the city.
   

9. （5） You have to be 18 years old before you are to drive a car .