27. The limits of a person’s intelligence, generally speaking, are fixed at birth, but he reaches these limits will depend on his environment.

A. where B. whether C. that D. why

28. A lot of language learning, has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.

A. as B. it C. which D. this

29. We’ve had a good start, but next, more work needs _________to achieve the final success.

A. being done B. do C. to be done D. to do

30. __________I always felt I would pass the exam, I never thought I would get an A.

A. While B. Once C. If D. Until

31. The lecture, __________at 7:00 pm late night, was followed by an observation of the moon with telescopes.

A. starting B. being started C. to start D. to be started

32. ——Since I am your old customer, would you _________ some books to us for free?

——No problem. We'd love to .

A. pay off B. call off C. give away D. put away

33. Shenzhou 10’s only female member is Wang Yaping, a 35-year-old air force pilot _________ earlier duties included seeding clouds in an attempt to clear the skies for the 2008 Beijing Summer Olympic Games.

A. whose B. her C. of which D. who

34. Her English is much too perfect. She ________ it herself, I bet.

A. might have written B. can’t have written

C. can’t write D. must have written

35. — What are you going to do this weekend?

— __________. If time permits, I may go to Shanghai with my friends.

A. Don't mention it B. It doesn't matter C. Forget it D. It depends

第二节 完型填空(每小题1分，共20分)