单选题If you couldn't attend either of the concerts and are ______ gnashing your teeth at having missed out, don't despair.
单选题Men differ from animals ______ they can think and speak.
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单选题The doctor said that mental ______ is the major cause of his sleeping problem.
单选题There is one thing I ______ like to know—what is it about Tim that you find so appealing?
单选题Time _____, the celebration will be held as scheduled.
单选题Research shows that there is no_____ relationship between how much a person earns and whether he feels good about life.
单选题Your improper words will give ______ to doubts concerning your true intentions.
单选题After living in London for fifty years he returned to the small town ______ he grew up as a child.
单选题Her favorite book of bedtime stories for children was_______in English.
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单选题Mary was very annoyed that her secretary did not meet her deadlines, and she warned her that her laziness and ______ could result in her dismissal.
单选题( ) , the next problem was how to make a good plan.
单选题Don't smoke in the meeting-room, ______? A. do you B. will you C. can you D. could you
单选题This movie has a ________ ending. You can not imagine who will be killed finally.
单选题Anatomists generally maintain that the human heart is nearest ______ .
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单选题It was an egg ______ my mother threw at the Minister of Education yesterday.
单选题The world's first national park, Yellowstone National Park, was established in Wyoming in 1872 to protect an area of ______ natural beauty.
单选题He offered her a trip to Australia but she ______ him ______ flat.