单选题The figures show evidence that murders in the nation's capital are beginning to ______ .

单选题I wonder why ______ impossible for you to do the work by yourself.

单选题He as well as my sister ______ a student of English.

单选题In which of the following ways of booking does one probably have to pay extra money?

单选题Speaker A: What a surprise ! You changed your hair style.Speaker B: Yes, and another surprise, I'm going to get married next Saturday.Speaker A:______

单选题Effective teamwork is key to the success of a business． Teamwork helps tasks get completed quickly and efficiently高效地． However , poor teamwork can hinder a business success and make operations much mo

单选题It is unacceptable that a person ______ for an uncommitted crime.

单选题He announced that the company had been transferred to_________city.

单选题Scientists have been struggling to find out the reason behind blushing （脸红）。Why would humans evolve（进化） a 21__________ that puts us at a social disadvantage by 22__________ us to reveal that we have c

单选题How have Margherita's family reacted to her success?

单选题His colleagues were envious ______ his promotion.

单选题I'm sorry to say that neither Bill______Mary knows Bob's telephone number. [A] and [B] or [C] nor

单选题Even when she didn't know what she ______ about, she spoke more authoritatively than most people did.

单选题______ that they may eventually reduce the amount of labour needed on construction sites by 90 percent.

单选题{{B}}Passage Five{{/B}} Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico. Eleven gray whales have died in the San Francisco Bay in the last three weeks. No one knows why the whales are dying. Last year 270 whales died along the whales' migration route. Many people think starvation is the cause. This year the dead whales seem to have more blubber (fat) on them. Twenty years ago, the gray whale was listed as an endangered species. Some scientists think that the larger number of whales makes it hard to find enough food. More whales create more pressure on the food supply, a supply that some scientists say may have dwindled as a result of the warm waters of El Nino. Most of the whales have been dead for many days before they are found and studied. This makes it hard to find the reason for death. 65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year. The whales could be dying from many diseases, but it may be over-population.

单选题The integration of staff for training has led to a good exchange of ideas, greater enthusiasm, and higher staff ______.

单选题Woody arrived at a most ______ moment; I was just getting into the bath.

单选题Charles: What time are you leaving?Brown: I'm going to try to leave by 10:00.Charles: Take care and ______.Brown: Goodbye. Hope to see you again next year.

单选题If the author's assessment of the use of heat pumps is correct, which of the following best expresses the lesson that advertisers should learn from this case?______

单选题The government ______ a heavy tax on tobacco, which aroused opposition from the tobacco industry. A. pronounced B. imposed C. composed D. prescribed