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. Keeping a diary is ____ good habit. Stick to it, and you will make ____good progress in writing.
A. a; / B. a: a C. the; a D. /; a
22. The earthquake in Haiti and the suffering ____ leads to have great influence on the people there.
A. what B. that C. which D. it
