21. – Let's play football after class, shall we?
–______ I can’t wait to do that.
A. Forget it! B. Thank you. C. Why not? D. Not at all.
22. This is the first time that I ______ the song Gangnam Style.
A. hear B. are hearing C. heard D. have heard
23. I ______ him to give up smoking, and succeeded.
A. persuaded B. tried to advise C. tried to persuade D. suggested
