1. 根据语境，用方框中所给短语的适当形式填空。（每个短语仅使用一次）

on the spot；account for；bring up；go ahead；to the contrary；by accident

1. （1） The child who is well has been taught to be polite and to behave well.
3. （2） —Would you mind if I ask you a question？

   —No.，please.

5. （3） What will you do if you burn yourself？
7. （4） I want you to every cent you have spent.
9. （5） He was hit by a falling tree and killed.
11. （6） I will continue to believe it until I get proof.