基本信息
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．—Excuse me, Sir. Would you do me a favour?
—Of course. What is it?
—I if you should tell me how to fill out this form.
A．had wonderedB．was wondering
C．would wonderD．wonder
22．Since most of these projects are still in the experimental stage, they are not cheap, the cost is expected to go down in the future.
A．soB．andC．forD．but
