1 . The key you have just got     the front door.

A．is used to opening	B．is used to be opened
C．is used to being opened	D．is used to open

2 . She makes it a rule to ___________(闲置) five hours a week to learn English,

3 . 语法填空
1. Modern methods oftracking polar bear populations have been employed only since the mid-1980s, and are expensive_____(perform) consistently over a large area.
2. I quickly lower myself, ducking my head to avoid_____(look) directly into his eyes so he doesn’t feel_____(challenge).

4 . The guy next to me tried to talk to me the whole time, which made me hard to c_____ on the experiment. (根据首字母单词拼写)

5 . All these foods and clothes must be sent out immediately ______ in time for those who were caught in floods.

A．in order to have received	B．in order to receive
C．so as to be receiving	D．so as to be received

6 . 虽然敲窗户的声音听得很清楚，但我过了好一会儿才作出反应。
Though the sound of __________ on the window could be heard clearly, it took me a long time to __________.

7 . It will take a long time for the survivors to r_______ from the terrible earthquake. (根据首字母单词拼写)

8 . The doctor tried to p_______ him to give up smoking, but he wouldn’t listen. (根据首字母单词拼写)

9 . My old car was out of work. I decided to r________ my old car with new one. （根据首字母单词拼写）

10 . I would like to e___________the black jacket-for a blue one. (根据首字母单词拼写)