根据句意和首字母提示完成单词。

1. He wants to j________ the art club.

2. Can his brother s________ English?

3. The girl can p_______ well. She is good at art.

4. -Can you play the guitar?  

   -Yes, but a l________.

5. S________ is the first day of a week.

集合淋巴结位于_____肠内。