1. 根据语境从方框中选择恰当的短语填空，有的需要变换形式，每个限用一次。

in person, look out of, at the age of, do research on, close to, once a week

1. （1）  20，he left school and found a job in a car company．

3. （2） Theythe environment and got much information about it．

5. （3） This afternoon the manager will go to，the meeting．

7. （4） Mary goes to visit her grandma．

9. （5） Don't stand Americans when you talk to them.It's note polite.
   

11. （6） Mrs Ricethe window and saw some students outside．