根据实际情况或提示回答问题：
1. Close your books, please.____________________________________
2. Open the window, please.____________________________________
3. Don’t talk in the library.______________________________________
4. Don’t eat in class.___________________________________________
5. What’s this in your pencil case?（铅笔）________________________
6. What’s this in the schoolbag? （英语书）________________________
7. Where’s your rubber? （在尺子下面）___________________________
8. Is your pencil on the desk? _____________________________________
9. How old are you? ____________________________________________
10. How old is Mike? __________________________
11. How old is your cousin?_______________________________________
12. It’s time for lunch. What time is it?______________________________
13. It’s time for class. What time is it?______________________________
14. Look at the farm. What are these?_______________________________
15. Look! What are those on the tree?_______________________________
16. Who’s the man / woman in your classroom? _______________________