一、根据句子意思和汉语提示写出适当的单词。
1. Eat breakfast on time, or you will feel (饥饿的) at school.
2. This T-shirt is too (昂贵的). Do you have a cheaper one?
3. (收集) stamps is my hobby and I have lots of stamps now.
4. The book is free and you don’t need to (付钱) for it.
5. — How (重的) is the bag of rice?
— 10 kilograms.
