4.There is the appreciation of the salient historical truth ________ the aging of advanced societies has been a sudden change．
A．which
B．what
C．that
D．how
A B C D
5.We promise that we’ll meet again after we _______ our college education in three years’ time．
A．finish
B．will finish
C．finished
D．will have finished
A B C D
6.Fish is ________ and expensive at this time of the year in this area.
A.in large measure
B.to the minimum
C.in short supply
D.to the maximum
A B C D
7.Robots differ from automatic machines ________ after completion of one specific task,they can be reprogrammed by a computer to do another one．
A．in case
B．in that
C．in which
D．in time
A B C D
8.This is the most beautiful village _______ I visited these years.
A.which
B.where
C.in which
D.that
A B C D
9.Why do you blame him for his poor judgment on the matter ______ he really needs is encouragement?
A．when that
B．since that
C．when what
D．now that
A B C D
10.The doctors are ________ about the guidelines under which they can carry out euthanasia.
A．a(chǎn)t a stretch
B．a(chǎn)t a loss
C．a(chǎn)t random
D．a(chǎn)t length
A B C D
11.New drivers are far more ________ to have accidents than experienced drivers.
A.possible
B.likely
C.probable
D.unlikely
A B C D
12.It is vital that the work _______ in time.
A.is done
B.be done
C.are done
D.was done
A B C D
13.If an earthquake occurred,some of the one-storey houses ________．
A．might be left stand
B．might leave to be standing
C．might be left to stand
D．might be left standing
A B C D
14.If you _______ in behaving in this way you will bring yourself nothing but trouble.
A.continue
B.persist
C.decide
D.react
A B C D
15.The government finally ________ all the documents relating to the war.
A.released
B.specialized
C.realized
D.supposed
A B C D
16.Although Tom is satisfied with his academic achievement,he wonders _______ will happen to his family life．
A．it
B．that
C．what
D．this
A B C D
17.During the past two decades,research has ________ our knowledge of daydreaming.
A.expanded
B.emerged
C.descended
D.conquered
A B C D
18.Never before _______ so rapidly developing as it is today．
A．has our country been
B．our country has been
C．has been our country
D．our country hasn’t been
A B C D
19.The outline of rooftops and chimneys ________ against the pale sky.
A.pulled out
B.looked out
C.held out
D.stood out
A B C D
20.That proposal is essentially irrelevant ________ the issue at hand.
A.with
B.from
C.in
D.to