35. - I have got a headache.

- No wonder. You　　　　 in front of that computer too long.　　

A. work　　　　　　　　 B. are working　　　　　　　

C. have been working　　　　　 D. worked

34. The expert insisted that silkworms were first raised by a woman in　　　　　 is now Hebei Province.　　

A. which B. that　　 C. where D. what

33. My grandfather is as　　　　　 as a young man and hates sitting around doing nothing all day.

A. enthusiastic　　　 B. energetic　　 C. talkative　　 D. sensitive　　　

32. - I am afraid the task is too difficult for me, sir. 　

-　　　　 , Linda. Just believe in yourself!

A. No problem　　　　　　　 B. That's all right

C. That's OK　　　　 D. Come on

31. - John, where are the cookies? Don't tell me you ate them all.　

-　　　　 . I couldn't help it. They were so good.

A. Yes, I did　　　　　 B. No, I didn't

C. Yes, I have　　　　 D. Why? Sound strange

30. Mike had to walk home　　　　　 his bike stolen. 　

A. with　　 B. as　　　 C. for　　　 D. since

29. So far, several cases of a disease,　　　　　 as H1N1, are reported to have been found in the country.　

A. knowing　　 B. to be known　　　 C. having known　　 D. known

28. - Where is your uncle's home?　

- In New York. But he　　　　　 in Boston for four years.

A. has lived　　 B. lived　　 C. had lived　　 D. had been living

27. - May I help you?

- Yes, I'd like to try on some sports jackets just like　　　　　 I'm wearing.　

A. it B. one　　 C. the one　　　 D. that

26. - Did Jack come back early last night?

- Yes, It was not yet eight o'clock　　　　　 he arrived home.　

A. when　 B. that　　 C. before D. until