第一节：单项填空（共15小题，每小题1分，满分15分）
21. —What do you think of the five doll mascots for the 2008 Olympic Games?
— , they are lovely, but I really do not know what they mean.
A. To tell the truth
B. I’m afraid
C. Unfortunately
D. It’s a pity
网友回答
(答案→)A. To tell the truth
B. I’m afraid
C. Unfortunately
D. It’s a pity
解析：可联系答.案.网客服索取。