7.　　 The exam is not as difficult as we ______ before.

6.　　 They _______ a lot of advanced electric equipments.

5.　　 We spent the day _______ around on the river.

4.　　 These machines _______ in their factory.

3.　　 We started early ________ arrive before dark.

2.　　 She _______ to having told a lie at last.

1.　　 She often________ of the room being too small for her.

20. He can’t decide where he should stay for the night. (同意句转换)

　He can’t decide ________ ________ ________ for the night.

19. They have been at our school since two years ago. (划线部分提问)

　________ ________ ________ they ________at our school?

18. There’s something wrong, ________ ________?(完成反意疑问句)