【单选题】 We are not conscious of the extent of which work provides the psychological satisfaction that can make the difference between a full and empty life.
A.to which
B.in which
C.at which
D.by which
【单选题】 According to the author, swans in captivity are ______.
A.happy unless their wings have been cut
B.happy most of the time, but unhappy sometimes
C.unhappy most of the time
D.only happy when they are bringing up families
【单选题】 International regulation may be necessary to address a problem of this kind that technology is likely to throw up in the next decade.
A.tackle
B.stifle
C.sniffle
D.trigger
【单选题】 Only hotel guests have the________of using the private beach.
A.occasion
B.possibility
C.privilege
D.allowance
【单选题】 There is no other man in history than Thomas Jefferson who formulated the ideas of democracy with such fullness, persuasiveness and logic.
A.developed
B.expressed
C.established
D.put forward