第二部分：英语知识运用（共两节，满分35分）
第一节：语法和词汇知识（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21. Having __________ no-meat day would be a good way of encouraging ___________ low carbon life-style.
A. a; the B. a; a C. the; the D. the; a
To make the most of your time, live every moment as if it________ your last.
| A．is | B．would be |
| C．were | D．has been |
When my father is upset, he would rather ________.
| A．leave alone | B．we left him alone |
| C．left alone | D．we leave him alone |
What a pity! Considering his ability and experience, he ________ better.
| A．need have done | B．must have done |
| C．can have done | D．might have done |
—David, the windows of the room are very dirty. ________ I clean them before we move in?
—Of course.
| A．Will | B．Would |
| C．Shall | D．Do |
—Where is the post office?
—It's just over there, at the end of the street. You ________ not miss it.
| A．can | B．must |
| C．may | D．should |