用括号中的介词填空。 |
(on, like, after, at, in, of, under) 1. Is Li Lei ______ duty today? 2. My bike isn't ______ the tree. It's in the house. 3. What are these ______ English? 4. -Where is the broom? -I think it's ______ the floor. 5. -What's on the wall? -It's a map ______ China. |