35. Everyone has periods in their lives ______ everything seems very hard.

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

34. I can’t thank you ______ much because without your help I ______ have won the first prize.

A. too; wouldn’t　 B. very; shouldn’t　 C. that; might not　 D. so; couldn’t

33.　 The big city has always been the dream career destination of college students. But of late a trend of heading back home ________a part of future job considerations.

A. has become　 　B. had become　 C. becomes　 　　D. will become

32. A severe drought over the past months has left 7.5 million people without ________ drinking water in two southwestern Chinese provinces.

A. frequent 　　　B. private　　 　　C. permanent　　 D.adequate

31. Stronger and more lasting memories are likely to be formed ________a person is relaxed.

A. where　 　　　B. unless　 　　C. when　 　　　D. although

30. British scientists said teenagers are programmed to take risks because they enjoy the thrill of dangerous situations________ others.

A. more than 　　B. less than 　　C. other than　　 D. rather than

29.　 Everyone wants to live in a beautiful, comfortable and “livable ” place, but not ________ know where it is.　

A. some　 　　B. either　 　　C. all　 　　　D. both

28.　 The comedy Tooth Fairy is based on the story all western children know: If a kid leaves a tooth under their pillow, they’ll receive a visit from the tooth fairy, who takes the tooth and leaves a gift ________.

A. in general　　　　　　 B. in exchange　　　　　　　 C. in total　　　　　　　 D. in common

27. Nearly four hundred supermarkets in Beijing are preparing to dim their lights ________ the "Earth Hour 2010" on Saturday night.

A. honor　　 　B. honoring　 　C. to honor　 D. having honored