21. As is known to all, _______ strong and powerful China will certainly benefit _____ whole world.
A. a; a B. the; a C. the; the D. a; the
22. You have to be a fairly good speaker to ________ listeners’ interest for over an hour.
A. catch B. hold C. improve D. attract
23. --- Mom, I still want to watch the football match tonight.
--- The final exams are approaching. _____ you watch the football World Cup every night?
A. Must B. Can C. May D. Need
24. --- Why is Jack always playing?
--- He has no ________ of time.
A. feeling B. opinion C. effect D. sense
