1. 根据句意及首字母或中文提示填写单词。

1. （1） I'm afraid I have （困难）passing the exam.

3. （2） Look! There is a beautiful （彩虹）in the sky. It's colourful.

5. （3） If you need physical （力量）, you should wear red clothes.

7. （4） She is in a good （心情）today.

9. （5） We need to make a （决定）on this by next Friday.