12. There is only one knife on the desk. (对划线部分提问)

________________________________________________________

11. I’m going to the Palace Museum with my family next Thursday.

(对划线部分提问)

________________________________________________________

10. My sister does well in math.　 (变成否定句)

________________________________________________________

9. Sam will visit Brazil next week. (变成一般疑问句并否定回答)

________________________________________________________

8. His watch costs 300 yuan. (变成一般疑问句并否定回答)

________________________________________________________

7. enough, there, not, else, for, will, space, anybody, be (连词成句)

________________________________________________________

6. My boss is going to fly to London on business the day after tomorrow. (用often改写句子)

________________________________________________________

5. Aunt Li’s son has ten toy bears. (对划线部分提问)

________________________________________________________

4. They are surfing. (对划线部分提问)

________________________________________________________

3. Mrs. Brown is going to buy a digital camera. (对划线部分提问)

________________________________________________________