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• Although wind power has many advantages, turbines used to produce such power are regarded by many pe
• Helping others is often considered a moral obligation. However, in some cultures, any sense of compu
• 11.The explosion of the nuclear power plant in Japan has caused global ______ about the safety of th
• 2.For people in business, it is obvious that the cost of a product is an ______ of its quality. In f
• 20.Building roads, bridges and houses is no easy job, and that’s why it is harder to find good _____
• 26.Henry seldom came to see his parents, ______?(A)does he(B)did he(C)doesn’t he(D)didn’t he
• Worldwide, tourism generates annual ______ of nearly 3 trillion US dollars, making it the world’s la
• 12.Maria’s bossy husband asked her to quit her job and stay at home so that she could more fully and
• 3.There were some ______ questions on the test last week, and it took me a while to figure out the a
• Some people have a ______ about broken mirrors. They believe that if you break a mirror, you will ha
• When instant cake mixes hit US shelves in the late 1940s, sales were ______. The main reason was tha
• Some people shop merely to acquire. This type of ______ shopping often puts them in considerable fin
• 13.Tears welled up in my eyes when I watched the ______ news about a 1-year-old baby being abused to
• When we think of great ______, we often think of the spectacular buildings of the past, such as cath
• Hunting and habitat destruction have forced roughly 720 mountain gorillas to ______ to just a few pr
• 22.______ for survival but they also fought for freedom.(A)They not only fought(B)Not only did they
• ______ is spreading throughout Asia as people move to big cities, where they eat fattier fast food a
• Internet dating services help people find interesting people to date. New members usually need to fi
• 23.The phone constantly ______ since the president officially announced his resignation at the press
• ______ can change the color of their skin. Sometimes these animals will change colors so that they a
• Deadly ______ have hit Tokyo, the capital of Japan, and drowned at least 3 people after torrential r
• What’s the recipe for a successful TV crime show like CSI? Good triumphs over evil and ______ is ser
• 27.We are looking for a volunteer ______ specialty can help run the project in Thailand.(A)who(B)wh
• 28.Generally speaking, those ______ look on the bright side of life are healthier and live longer.(
• 30.To get our work ______ on time, we need to know what is the most important and needs attention fi