用单词的适当形式填空。

1.  The old man has a serious ______ (ill).

2.  Mr Chen is ______ (stress) out.

3.  It's easy to stay ______ (health).

4.  —I think our teacher is working hard.  He teaches us ______ (good).

    —Yes, but he hasn't come today.  He doesn't feel ______ (well).

5.  I don't like ______ (west) music.