32. Last year, Carol Smith went from the UK to Brazil,　　　　 　she worked on a project to help save the Amazon rainforest.

A. where 　　　　　　　　　　 B. which 　　　　　　　　　　 C. when 　　　　　　　　　　　 D. since

31. The problem　　　　 　so severe that all Internet users are affected by it either directly or indirectly.

A. becomes 　　　　　　　　　　　　　　　　　　　　　　　　　　 B. has become

C. had become 　　　　　　　　　　　　　　　　　　　　　　　 D. is becoming

30. 　　　　　that between 2000 and 2020, over 68 million people will die of Aids in the countries most affected by epidemic.

A. What is estimated 　　　　　　　　　　　　　　　　　　　 B. As we estimate

C. It’s estimated 　　　　　　　　　　　　　　　　　　　　　　 D. It estimates

29. Many drug users wish they　　　　 　rewind their lives and start over again.

A. can 　　　　　　　　　　　　 B. may 　　　　　　　　　　　 C. should 　　　　　　　　　　 D. could

28. The number of children who have lost both parents to Aids　　　　 　to rise, reaching more than 26 million in 2010.

A. are expected 　　　　　 B. expect　　　　　　　　　　 C. is expected 　　　　　　　 D. expects

27. Let’s hope the fine weather　　　　 　for Sunday’s camping trip.

A. keeps up 　　　　　　　　 B. picks up 　　　　　　　　 C. carries on 　　　　　　　 D. puts up

26. One of the founding fathers of the Internet, Vinton Cerf, would no doubt agree that international cooperation is the key to dealing with cybercrime,　　　　 　he has said that the problem of cybercrime is so large that it requires the United Nations to form a special agency to act as an international referee or steward.

A. when 　　　　　　　　　　 B. while 　　　　　　　　　　 C. as 　　　　　　　　　　　　　 D. which

25. Deeply his unhappy childhood, the boy’s　　　　 　seemed quite odd and strange.

A. relating to; characters 　　　　　　　　　　　　　　　　 B. associated with; personality

C. linked by; virtues 　　　　　　　　　　　　　　　　　　　 D. connecting to; morality

24. So small　　　　 　that they don’t admit much light at all.

A. the window is 　　　　　　　　　　　　　　　　　　　　　　 B. is the window

C. the windows are 　　　　　　　　　　　　　　　　　　　　 D. are the windows

23. There are a couple of points we need to　　　 　before the meeting begins.

A. clear up 　　　　　　　　 B. give up 　　　　　　　　　 C. make up 　　　　　　　　 D. look up