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.
