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．With ________ look of disappointment, he left the Student Union office. Without ________ knowledge of English, he missed the chance to be a host.
A. the, the B. a, a C. the, a D. /, the
22. —What do you think of his words?
—What he said sounds_____.
A. nicely B. pleasantly C. friendly D. wonderfully
