第二部分：英语知识运用（共两节，满分45分）
第一节：单项填空（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。
21.----I’m sorry I made a mistake !
----_______. Nobody is perfect .
A. Take your time. B. You’re right. C. Whatever you say. D. Take it easy.
22. Paper money was in ____ use in China when Marco Polo visited the country in ____ thirteenth century.
A. the; / B. the; the C. /; the D. /; /
23. Mark needs to learn Chinese ______ his company is opening a branch in Beijing.
A. unless B. until C. although D. since
24. Up to now, the program ______ thousands of children who would otherwise have died.
A. would save B. saves C. had saved D. has saved
25. Now that spring is here, you can ______ these fur coats till you need them again next winter.
