16．They have painted their new house. (改为被动语态)

Their new house_______ ___________　 _________by them.

15．Both the father and the son have seen the film. (改为否定句)

________the father_________the son_________seen the film.

14．The maths problem is too difficult for him to work out. (改为复合句)

The maths problem is_________difficult_________he can't work it out.

13．Mother said to me, "Don't go alone at night. "(改为简单句)

Mother told me_________ _________go alone at nighit.

12．Hurry up, or you'll miss the early train. (改为以 if引导的条件状语从句)

If you________　 _________　 __________, you'll miss the early train.

11．It is great fun to have a picnic on the hillside. (改为感叹句)

What________ it_________ to have a picnic on the hillside!

10．They will finish building the house in two weeks. (就划线部分提问)

　________　 __________　 _________they finish building the house?

9．Someone saw him swim in Qianling Lake yesterday. (改为被动语态)

He　　　　 　　　　　　　　　　　swim in Qianling Lake yesterday.

8．The old woman has few friends. (改为反意疑问句)

The old woman has few friends,　　　　 　　　　　?

7．Linda asked John, "Do you come from the USA?"( 改为复合句)

Linda asked John 　　　　　he　 　　　　　from the USA.