15. Li Lei received a letter from his parents yesterday. (改为同义句)

14. I don’t know when we shall leave for Nanjing. (改为简单句)

I don’t know when ______ ________ for Nanjing.

13. The boy is very strong, and he can carry the heavy box. (合并为一句，使句意不变)

The boy is _________ _________ _________ carry the heavy box.

12. Where did they grow vegetables? (改为被动语态)

Where ________ vegetables ________ ?

11. Jim runs faster than any other boy in the class. (改为同义句)

Jim runs ______ _______ in his class.

10. Is the earth round? The little boy asked. (合并为宾语从句)

The little boy asked ________ the earth ________ round.

9. The box was so heavy that she couldn’t carry it. (改为简单句)

The box was ________ heavy ________ her ________ carry.

8. The film is very interesting. (改为感叹句)

________ ________ the film is!

7. Hurry up, or we’ll be late.(改为复合句)

________ we ________ hurry, we’ll be late.