1. 根据句意及汉语提示，完成句中所缺单词。

1. （1） If you agree with the plan. you can  (点头) to them.

3. （2） We are quite in  (同意) with what Tom said.

5. （3） Mrs. Smith promised to buy her son a new bicycle but she had to  (使失望) him.

7. （4） ls it my  (过失) that you can't catch up with the other students?

9. （5） If you want to go into the hall, please  (拉) the glass door.