根据句子意思和首字母，写出恰当的单词。
It’s 12:00. I am very h__________. I am going to eat a lot.
Be q__________. We can’t talk in the library.
We should arrive at school on time. Don’t be l__________ for school.
The boys are very young but they are very c____________.
I am short but my brother is very t__________.