( )12. When the man came back, he found the roof of his car had been damaged by an elephant.12.【解析】题意：当这个人回来时，他发现他的车顶被一头大象弄坏了。根据短文第三句 “When he came back, its roof was badly damaged.” 可知，当他回来时，车顶被严重损坏了。本题说法正确，故答案为A。

35. Then your once healthy cell bursts open, releasing new viruses to ____ more cells.

44. If your brain does not make enough of a certain kind of neurotransmitter, you will ____.

50. What is the most important thing we can learn from this passage?We should get to know what we really look for before we can learn how to achieve ________.

61. 有些人对别人的工作成果只会挑毛病，却从未提出过什么建设性的意见。

(  )55. If your credit card is with price protection , you can get a refund of the price gap. 

2.

34. You ought not to ____ your thoughts on others.

43. According to the author, why certain foods affect our moods has something to do with ____.

46. Will looking at good pictures help you learn how to decorate rooms better? Why or why not?________, because you don‘t know what to look for and why it is ________. 

33. Do you want me to ____ this wedding?

5.