第一节：单项填空（共15小题；每小题1分，满分15分）

　　请认真阅读下面各题，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. All the mistakes I ever made in my life were _______ I wanted to say "No" and said "Yes".

A. how B. that C. whether D. when

22. When the authorities refuse to register The Slants as an Asian American band's name, are they ___ its rights?

A. challenging B. violating C. abusing D. confirming

23. He laughed at my third-grade photo, the one _______ my hair had been expanded to new dimensions by an especially cold and windy day.

A. when B. that C. where D. what

24. Hang a wet towel in your hotel room -- because of climate-controlled rooms and windows that don't open, the air _________ be very dry.

A. must B. can C. shall D. need

25. It's said that if she moves her handbag to her right arm, it shows the queen is bored and wants to _______ her chat with you.

A. wrap up B. pick up C. take up D. make up

26. Medical errors and various infections, if _________, will be the third leading cause of death in the world.

A. being combined B. to combine C. having combined D. combined

27. "The young man _________, but he chose to stay and help me," Prather told CBS News. "I say thank you to him every day."

A. could have left B. must have left C. could leave D. must leave

28. - You are so kind, honey, but I prefer a beautiful dress.

- OK. ___________.

A. You've got me there B. You name it

C. You have the last word D. You are pulling my leg