1. (2023八下·期中) 用方框中所给单词的适当形式填空，每词限用一次。

realize,   excite,   knife,   true,   take risks

1. （1） We are when we hear the news that we won't have classes tomorrow.
3. （2） Several days later, Mr. Black the mistakes that he had made at the meeting.
5. （3） Tom was very angry because no one told him the .
7. （4） As a mountain climber, Aron is used to .
9. （5） Be careful when we use to cut things.