单选题"How much was your train ticket?" "It______ $50 round trip."

单选题In the summertime, on bright warm days ________ the sun was high in the sky, John would help his wife weed and tend the vegetables.

单选题All the people ______ enjoyed their afternoon visit to the laboratory.

单选题(A) About 16 million people in the United States have lost some of their hearing. About two million others are extremely or completely deaf. They cannot hear speech or most other sounds in their everyday life, even with a hearing aid to make sounds louder. There are several kinds of hearing loss. The first kind results from disease or injury to the outer or middle part of the ear. The damage prevents sound waves from reaching the inner ear. Usually, this form of hearing loss is not extreme. And a hearing aid or medical treatment can often restore hearing. A second kind of hearing loss involves the nerves (神经). It is caused by damage to the inner ear. A loud noise or disease may destroy some of the tiny nerve cells that carry sound. People suffering this kind of damage may lose the ability to hear some sounds, high or low. The third kind of deafness is called a central hearing loss. It is caused by damage to the hearing nerves leading to the brain or in the brain itself. Deafness is the most common bodily disability (残疾) in America. Often nothing can be done to stop it. But many cases can be prevented. One simple thing is responsible for most hearing loss. That one thing is noise. Telephone bells, loud music, machines. In industrial countries, especially, these things make the world very noisy. Studies have shown that old men in quiet African villages have much better hearing than young people in America. Other sources of deafness. include accidents, drugs and illnesses.

单选题I can ______ stories that my grandmother told me years ago.

单选题When you ______ the boxes, please call me. A. have finished moving B. finish to move C. will have finished moving D. will finish to move

单选题Under the ______ that we needed money badly, we had to accept a very low price when we sold the house. A. circumstancesB. occasions C. conditions D. situations

单选题Lucy is the only person ______ I can depend on.

单选题The homework ______, he went out to play chess with his friends.

单选题—David has made great progress recently. —______, and ______.

单选题The building was named ______ the hero who once worked on it.

单选题He is ______ about the chances of winning a gold medal in the Olympics next year.

单选题There are four suitcases in the car, and the men carried two into the house ______. A. each B. every C. both D. all

单选题The professor ______ enough stress on these points in class.

单选题We should look up to our teacher as a shining example of ______ to the cause of education. A. devotion B. admiration C. achievement D. respect

单选题By no means ______ promised to help you ______ of how their business was going on.

单选题Macao ______ its return to China in December, 1999.

单选题It is important that we ______ the task ahead of time.

单选题I hear that all those houses in the street ______ by the time you come back.

单选题By the end of next month I ______ in this city for 32 years. A. will be living B. will have been living C. have lived D. am living