21. Though the number of the cars is growing, _____ bicycle is still _____ popular means of transport in some countries.
A. a; the B. a; / C. the; the D. the; a
22. —Would you like to have dinner with me at 7 p.m.?
—I’m afraid I can’t. I _____ a report at the meeting at that time.
A. will be giving B. will give C. gave D. am giving
