第一节:单项选择 (共15小题;每小题1分, 满分15分)
请认真阅读下面各题, 从题中所给的A、B、C、D四个选项中, 选出最佳选项, 并在答题纸上将该项涂黑。
21. Some exercises appear to be ________ ones you have done, but on ________ second thoughts, you’ll find that they’re different.
   A. 不填; the                  B. the; the                    C. the; 不填        D. 不填; 不填
22. —Do you think that the 11th Chinese National Games were a success?
—Yes, ________! It couldn’t be ________.
A. relatively; better                            B. approximately; worse  
C. absolutely; better                             D. fortunately; worse