单选题A gold-rated building is estimated to have reduced its environmental impact by 50% compared with a(an) __ conventional building.
单选题Male cigarette smokers have a higher death __ from heart disease than non-smoking males.
单选题A university is an educational institution which awards degrees and __ research.
单选题Since earth creatures cannot breathe in the moon's atmosphere, we can safely say that ____.
单选题Your speech class will make your nervousness work for you __ against you.
单选题Let us wait for you in the reading-room, __ ?
单选题The bookcase __ when we were moving it.
单选题Personal worth and self-esteem is the basis of a good __ health.(33)
单选题The lead pencil is the simplest, most ___ and least expensive of all writing instruments.
单选题The article is mostly about __
单选题We shall start at seven if it __ by that time.
单选题Six years __ before she got another note from Teddy.
单选题Today three out of four Americans __ towns, cities or suburbs.
单选题Four score and seven years ago our fathers __ on this continent a new nation.
单选题A professional degree will __ an average annual income of about twice that of college graduates.
单选题There is also an interest in sea horse, puffers and other salty types with shapes ____ and colors ____ than even the showiest of fresh-water fish.
单选题If Lincoln were alive today, he __ a top athlete in many sports.
单选题The squirrel was lucky that it just missed __
单选题By November 1973 oil supplies were critically low, creating the most __shortages of energy since World War II,
单选题A(An) _______ is better than the text and may make the point clear.