21. —Do you like cooking, Mary?
—______. Luckily I’ve never had to worry much about it.
A. Not bad B. Not really C. Probably not D. Suppose not
22. Viewers will have ______ second chance to see Saturday’s concert on ______ Channel 4 tonight.
A. a; the B. the; the C. the; 不填 D. a; 不填
23. ----How many times have you been to China?
--- In fact, it is the third time that I __________ here.
A. was B. am C. had been D. have been
