根据汉语提示写单词。

1. Do you want to _____ (加入) the music club?

2. We usually _____ (开始) our lessons at about 8 0'clock every day.

3. This is Mike's new _____ (毛衣). It is green.

4. My ruler and pencil case are on the _____ (桌子).

5. Good friends should _____ (帮助)each other.

宋元、朱熹：

“国子监”既是宋朝最高教育管理机构，又是最高学府。