1. Jack studies in an        (internation) school.

20. 根据那份报告，一些老人也喜欢玩电脑游戏。

                 the report, some old people like computer games, too.

19. 通过这个窗户，我看到了许多气球升到了空中。

I saw many balloons               the air through the window.

18. 所有的星星都会发出光和热。

All the stars             light and heat.

17. 当我有困难的时候，她会站在我这边。

She stood by me when I was_______________

16. 这座山整年被雪覆盖着。

The mountain             snow all year around.

(   ) 15. The room      every day. You can live in now.

A. cleans    B. is cleaning C. is cleaned    D. has cleaned

(   ) 14. Today,sky lanterns       as bright symbols of good wishes.

A. saw    B. see C. will see    D. are seen

(   ) 13. Chinese like to       some beautiful paper cuttings on walls and doors during the Spring Festival.

A. put off    B. put away

C. put up    D. put out

(   ) 12. As the curtain      ， the famous singer came out. The fans

      and screamed with excitement.

A. was raised;rose B. had been raised;were raised

C. rose;were raised D. had risen;raised