19. I am going to buy a bag tomorrow. (对划线部分提问)

_______ _______ _______ going to _______ ?

18. My mother bought the watch. (改为一般疑问句)

_______ _______ mother _______ the watch?

17. He's been to Beijing. (变为反意疑问句)

He's been to Beijing, _______ _______ ?

16. Jenny never goes to school at seven. (变为反意疑问句)

Jenny never goes to school at seven, _______ _______ ?

15. I don't know _______ .

A. where is the post-office B. what is the post-office

C. how is the post-office D. where the post-office is

IV. 按要求转换句子，每空一词。(10分)

14. You must walk down the road and turn left _______ the _______ crossing.

A. at, two B. at, second C. on, two D. in, second

13. I got up _______ half _______ five.

A. at, past B. at, to C. in, to D. in, at

12. Paper is made _______ wood.

A. in B. of C. from D. to

11. It is fun _______ my mother _______ housework.

A. help, with B. to help, with

C. helping, with D. helps, of

10. Mary often _______ (stay) at home.

III. 选择填空。(10分)