Please do not be ______ by his offensive remarks since he is merely trying to attract attention.

Astronomers at the University of California discovered one of the most distant ______.

Individual sports are run by over 370 independent governing bodies whose functions usually include ______ rules, holding events, selecting national teams and promoting international links.

______, he seems to know everything in the city.

Must I accompany him? No, you ______.

The price of the coal will vary according to how far it has to be transported and how expensive the freight ______ are.

He resented ______ to wait

The oxygen equipment made it possible for the climbers to rest and sleep at very high ______.

______ to speak when the audience interrupted him.

He was brought before the ______ for trial.

We expect Mr

The doctor proposed that she stay for one more week, her discharge from the hospital ______ later on.

Small farms and the lack of modern technology have ______ agricultural production.

Despite almost universal ______ of the vital importance of women's literacy, education remains a dream for far too many women in far too many countries of the world.

大多数宗教建筑都有不同的风格和名称，如伊斯兰教建筑有________；佛教建筑包括寺、塔；道教建筑包括宫等。

He managed to save ______ he could to tend the homeless boy.

She remains confident and ______ untroubled by our present problems.

______ in the past

Crying is hardly an activity encouraged by society. Tears, be they of sorrow, anger, on joy, typically make Americans feel uncomfortable and embarrassed. The shedder of tears is likely to apologize, even when a devastating tragedy was the provocation. The observer of tears is likely to do everything possible to put an end to the emotional outpouring. But judging form recent studies of crying behavior, links between illness and crying and the chemical composition of tears, both those responses to tears are often inappropriate and may even be counter productive. Humans are the only animals definitely known to shed emotional tears. Since evolution has given rise to few, if any, purposeless physiological responses, it is logical to assume that crying has one or more functions that enhance survival. Although some observers have suggested that crying is a way to elicit assistance from others (as a crying baby might from its mother), the shedding of tears is hardly necessary to get help. Vocal cries would have been quite enough, more likely than tears to gain attention. So, it appears, there must be something special about tears themselves. Indeed, the new studies suggest that emotional tears may play a direct role in alleviating stress, University of Minnesota researchers who are studying the chemical composition of tears have recently isolated two important chemicals from emotional tears. Both chemicals are found only in tears that are shed in response to emotion. Tears shed because of exposure to cut onion would contain no such substance. Researchers at several other institutions are investigating the usefulness of tears as a means of diagnosing human ills and monitoring drugs. At Tulane University's Teat Analysis Laboratory Dr. Peter Kastl and his colleagues report that they can use tears to detect drug abuse and exposure to medication, to determine whether a contact lens fits properly of why it may be uncomfortable, to study the causes of "dry eye" syndrome and the effects of eye surgery, and perhaps even to measure exposure to environmental pollutants. At Columbia University Dt. Liasy Faris and colleagues are studying tears for clues to the diagnosis of diseases away from the eyes. Tears can be obtained painlessly without invading the body and only tiny amounts are needed to perform highly refined analyses. It is known from the first paragraph that ______.

The wood was so rotten that, when we pulled