初中英语预备课程课课练答案答:8. lake, on, is, there, a, of, left, the, playground, the 二. 用适当的介词填空:1. There is a dog the tree.2. There are some books the bag.3. There aren’t any apples the tree,4. I am the students.5. There is a dog the river.6. Don’t swim the river.7. A book ...