题目内容：

用方框里单词的适当形式完成句子（5分）。

join  teach  sing  friend  good

1.My cousin is       at drawing. He can draw very well.

2.Mary often makes      with her classmates.

3.He wants         the music club.

4.Who is       in the next room?

5.Mrs.Wang is my favorite teacher. She         us music.