单选题Psychologists maintain that the nature of human beings entails a strong need to _____ their free time; idleness can be as stressful as activity.
单选题The shirt made of a new material is quite easy _____.
单选题Although his people did not _____ his efforts, he kept trying.
单选题In addition to bettering group and individual performance, cooperation ______ the quality of interpersonal relationship.
单选题Diamonds have little ______ value and their price depends almost entirely on their scarcity.
单选题The interminable civil war will not stop without the armed _____ by the U.N.
单选题Heart _____ is much more common these days than it was even ten years ago.
单选题Heart ______ is much more common these days than it was even ten years ago.
单选题These include design for reliability, design for serviceability, design for modularity and design for quality, which must be applied (in) the entire system.
单选题People in that area _____serious damage from the tornado.
单选题The editorial described drug abuse as the greatest as the greatest calamity of our age.
单选题Oil companies in the U. S. are already beginning to feel the pressure. Refinery workers and petroleum-equipment-manufacturing employees are being _____.
单选题It is obvious that the sports games are no longer amateur affairs; they have become professionally _____.
单选题The artist (captured) the girl's personality in his photograph.
单选题The fact that even the most traditional European language has _____ such words as 44e-mair, seems to indicate that no language is impervious to foreign influences.
单选题______ the few who have failed in their examination, all the other students in the hall are in very high spirits.
单选题To solve such a problem is really my grasp.
单选题The scheduled conference on the welfare of the disabled was because of the shortage of funds.
单选题One out of five bridges in the United States is outmoded.
单选题My grandmother, who _____ around the world, is to come to my wedding in the coming month.