35.　 Most of us know we should cut down on fat, but knowing such things isn’t much help when it ______ shopping and eating

　　　 A. refers to　　 　　　　　　 B. speaks of　　　 C. focuses on　　　　 D. comes to

34.　 The computer system ______ suddenly while he was searching for information on the Internet.

A. broke down　　　 　　 B. broke out　　　 C. broke up　　 　　　　　 D. broke in

33.　 The advertisement will greatly ______ to the success of the concert.

A. respond　　　　 　　　 B. compare　　　 C. lead　　　　 　　　　　　 D. contribute　

32. ______ China’s reform and opening up in late 1978, its quick development has aroused 　　　　　 worldwide attention.

　 A. When　　　 　　　　　　　 B. As　　　 　　　　 C. While　　 　　　　　　　 D. Since

31.　 The head of the company promised to deal with matters of this sort ______ he returned to his office.

A. until　　　 　　　　　　 B. while　　　 　　　 C. since　　　 　　　　　　 D. the moment