19. They used to be great friends but now they are like strangers. How ______ this ______?

18. Japanese is quite different ______ Chinese ______ pronunciation.

17. The students often practice ___________ English among themselves.

16. China is _____________ very fast day by day.

15. The sudden storm destroyed the house and 5 people were killed. Fortunately, I __________(幸免于难).

14. The boy admitted _____________(break) the ancient vase.

13. My mother is an actress and she has ____________________(扮演不同的角色) in TV series.

12. I don’t care much for coffee. I ____________ tea.

11. The children _____________(激动)when they were told they were going for a picnic next Sunday.

10. We should __________(让，使) everybody realize the importance of environment.