在下列横线上填入适当的单词，补全对话。
A：Kangkang，you looked     . What’s wrong?
B：I have a headache.
A：I’m sorry to hear that. What    it?
B：I watched a soccer game on TV last night and went to bed very late.
A：I see.  up late is bad for your health. You should go to bed early and you’ll feel    tomorrow.
B：Right! I   _ have a good rest.