1. You must look after your things well.
2. There are lots of books on the shelf.
3. There is something wrong with his bike.
4. My home is three kilometers away from my school.
5. It's the best time for swimming.
希望能帮到你,祝更上一层楼O(∩_∩)O
有不会的欢迎再继续问我(*^__^*)