单选题It is difficult to distinguish between the things that celebrities do ______ and those that are carefully contrived for effect.
单选题Ever since the first nuclear power stations were built, doubts have _____ about their safety.
单选题Two of the children have to sleep in one bed, but the other three have _____ ones.
单选题Experimental sciences, based on the observation of the external world, cannot aspire to completeness; the nature of things, and the imperfection of our organs, _____.
单选题The poverty of some of the districts is an _____ to good education.
单选题Facing growing costs and shrinking tax ______, the government is now threatening to cut funding for environmental protection programs.
单选题This movie will prove very interesting to all the teenagers, and to all the adults_____.
单选题Human population growth is menace to nonhuman life forms on our planet.
单选题The school-arranged road trip appears to ______ the spring break.
单选题The Japanese Prime Minister’s ______ is a seat on the U.N. Security Council, for which he will be lobbying at the summit.
单选题I’d_____ his reputation with other farmers and business people in the community, and then make a decision about whether or not to approve a loan.
单选题In any type of love, caring about the other person is essential. Although love may involve passionate ______, respect is a more important quality.
单选题With its own parliament and currency and a common _____for peace, the European Union declared itself—in 11 official languages—open for business.
单选题Tom is bankrupt now. He is desperate because all his efforts _____ failure.
单选题I have been suffering from _____ because of the continuous rain for the last three weeks.
单选题It was suggested that all government ministers should_____ information on their financial interests.
单选题It was nearly always organized by the government, although some club members acted _______ their own initiative.
单选题This conviction led to various experiments, all designed to _____ the traditional teacher-centered language class.
单选题The Beatles, the most famous British band of the 1960s, traveled worldwide for many years, _____ cultural barriers.
单选题When you win, your errors are _____; when you lose, your errors are magnified.