单选题The __ in Alberta is pleasant, particularly in summer.
单选题Do you know where the pictures on money ?
单选题The special education class contained the slow learners, those with ______ or mental disabilities, or those whose behavior made it hard for them to learn.
单选题Schlesinger's __ task was to meld all headquarters, field, and staff programs into a unified department.
单选题__ all we have learned from space flights, the moon is still a riddle from the distant past.
单选题The habit of __ regular hours is of extreme importance to successful learning.
单选题China and America are separated by __
单选题In 1864 Nevada entered the United States as __ thirty-sixth state.
单选题We go out for dinner a couple of times a month. Sometimes we __ a movie
单选题I was exhausted when I reached home, and I flung myself down on the front steps to__.
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 __