第二部分：知识运用（共两节，满分45分）
第一节：单项填空（共15小题；每小题1分，满分15分）
21.It is _____ great pleasure to go to ____ cinema after a week’s hard work..
A. a; the B. the ; a C. a, a D. the , the
22. Thank you for giving me a hand. I ______ in the experiment without your valuable help.
A. have failed B. will fail C. would have failed D. must have failed
