第一节 单项填空（共15小题，每小题1分，共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. We saw ______ audience clapping their hands when ______ popular singer appeared on the stage.
A. the; the B. the; 不填 C. an; a D. 不填; the
22. Before moving to Australia, the Browns______ their cars and house in the USA.
A. have sold B. sold C. were selling D. sell
23. A mistake _____ have been made on our bill. We didn’t order any fish today.
A. should B. would C. must D. could
24. After a long absence, I went back to college, ______ to pick up where I’d left off.
A. hoping B. hope C. to hope D. hoped
25. ----Thanks a lot for your book. I found it very interesting.
----_______. I’m glad you enjoyed it.
A. All the best B. It is nothing C. No thanks D. Very well.
26. You have a gift for art. ______ you do your best, you are sure to create fine art works.
