4. 你能跟上我吗？

Can you _____________________me?

3. 你知道这本书和那本书有什么不同吗？

Do you know ______________________________this book and that book?

2. 他住在北京，是吗？

He ___________________________, _____________?

1. 杯子里没有水，是吗？

There is _____________________________, _____________?

10. 50% of all business deals are made ______ English.

9. First we have to fill _____ a form.

8. Thank you _______ coming to see me.

7. Today some of the mobile phones can be used to take pictures ______ a camera.

6. Spring comes ______ winter.

5. Chinese is one ______ the official languages in the United Nations.