16. The underline part in the word “harmful” is pronounced as _______.

　　A. / æ / B. / ә / C. / ai / D. / a: /

　　17. While in college, Mark never minded ________ extra work for his class.

　　A. to do B. doing C. do D. did

　　18.If my homework ____ on Saturday, I will go to Century Park to watch the flower show on Sunday.

　　A. is finished B. had been finished C. was finished D. will be finished[来源:学科

　　19. —Can you come on Monday or Tuesday, John?

　　—I’m afraid _______ day is possible. I will be very busy on those two days.

　　A. every B. some C. either D. neither

　　20. ________ of the city was covered with the heavy smog.

　　A. Two-third B. Two-thirds C. Two-three D. Two-threes

　　21. The bus driver always says to us: “Don’t get off ______ the bus stops.”

　　A. when B. while C. until D. if

　　22. Mary takes a lot of exercise every day and she is always full of_______.

　　A. knowledge B. energy C. change D. damage

　　23. All the students are talking and laughing in the classroom and it’s ______.

　　A. noisy B. lonely C. quiet D. strict

　　24. Dear students, please read every sentence carefully. ______you are, ______mistakes you’ll make.

　　A. The more carefully, the fewer B. The more careful, the less

　　C. The more carefully, the less D. The more careful, the fewer

　　25. —Hello, may I speak to Mrs Zhou?

　　—________

　　A. Sure. Here you are. B. Sorry , she isn’t in.

　　C. OK. Who are you ? D. That’s right.