II.单项填空：（15小题，每小题1分 ， 共15分）
2. The professor gave us _____ talk on multicultural Canadian society, _____ topic
few of us are familiar with.
A. a; the B. the; a C. a; a D. the; the
22. It was the hard work and determination of the generation _____ had changed the
opinion of people towards Chinese.
A. why B. when C. that D. which
23. —A naughty boy kept talking in class.
—Are you _____ Mike? It’s just like him to be so rude!
A. coming across B. looking down on C. looking forward to D. referring to
24.______ on the top of the tower, and you can see the whole city.
A. Standing B. To stand C. Stood D. Stand
25. E-mail, as well as telephones, ____ an important part in daily communication.
A. is playing B. have played C. are playing D. play
26. He made a mistake, but then he corrected the situation _ it got worse.
A. until B. when C. before D. as
