[填空题]No one is to blame for the ______ (leak) on the roof.

[填空题]No one is to blame for the_______ (leak) on the roof.

[填空题]No one is to blame for the（）(leak) on the roof.

[单项选择]
It is quite reasonable to blame traffic jams, the cost of" gas and the great speed of modern life, but manners on the toad are becoming horrible. Eye,body knows that the nicest men would become fierce tigers behind the wheel. It is all right to have a tiger in a cage, but to have one in the driver’s seat is another matter.
Road politeness is not only good manners, but good sense too. It takes the most cool-headed drivers great patience to give up the desire to beat back when forced to face rude driving. On the other hand, a little politeness goes a long way towards reducing the possibility of quarrelling and fighting. A friendly nod or a wave of thanks in answer to an act of politeness helps to create an atmosphere of good will and calmness so necessary in modern traffic conditions. But such behaviors of politeness are by no means enough. Many drivers nowadays don’t even seem able to recognize politeness when they see it.
A. road politeness
B. traffic jams
C. good manners
D. modern drivers

[单项选择]

Genghis Khan was not one to agonize over gender roles. He was into sex and power, and he didn’t mind saying so. "The greatest joy a man can know is to conquer his enemies and drive them before him." The emperor once thundered. Genghis Khan conquered two thirds of the known world during the early 13th century and he may have set an all-time record for what biologists call reproductive success. An account written 33 years after his death credited him with 20,000 descendants.
Men’s manners have improved markedly since Genghis Khan’s day. At heart, though, we’re the same animals we were 800 years ago, which is to say we are status seekers. We may talk of equality and fraternity. We may strive for classless societies. But we go right on building hierarchies, and jockeying for status within them. Can we abandon the tendency Probably not. As scientists are now discovering, status seeking is not just a habit or a cultural tradition. It’s a
A. that he is a man who enjoys great victory m possessing land.
B. the astonishing number of his offspring in the world.
C. how cruel and arrogant an emperor can be in the past.
D. males have a long history of craving for power.

[填空题]He was the only one of the boys who (be) （　） blamed.

[单项选择]Find Yourself Packing It On Blame Friends
Obesity can spread from person to person, much like a virus, researchers are reporting today. When one person gains weight, close friends tend to gain weight, too.
Their study, published in The New England Journal of Medicine, involved a detailed analysis of a large social network of 12,067 people who had been closely followed for 32 years, from 1971 to 2003.
The investigators knew who was friends with whom as well as who was a spouse or sibling or neighbor, and they knew how much each person weighed at various times over three decades. That let them reconstruct what happened over the years as individuals became obese. Did their friends also become obese Did family members Or neighbors
The answer, the researchers report, was that people were most likely to become obese when a friend became obese. That increased a person’s chances of becoming obese by 57 percent. There was no effect when a neighbor gained or lost weigh
A. Their friends.
B. Their neighbours.
C. Their family members.
D. Their colleagues.