用括号里所给词的适当形式填空。

1. My parents want me           (study) hard at school.    

2. His idea is           (originally).    

3. Let’s invite Tom ____________ (play) volleyball.    

4. I lost his book., and I don’t know what ____________(do) with it.

5. I'm ____________(tired) today than yesterday.

分析建立和推行具有中国特色的职位分类制的重大意义。