第二部分：英语知识运用
单项选择（共15小题，每小题1分，满分15分）
21. –It’ll take me at least 2 hours to do this!
–Oh, ______! I could do it in 30 minutes.
A. come on B. pardon me C. you are right D. don’t mention it
22. Lots of problems _______ from the newly –built apartment .
A. rise B. raise C. lift D. arise
