The reader who has spent serious effort on a problem may________ from the effort even if he does not succeed in solving the problem．


  1. A.
    benefit
  2. B.
    conclude
  3. C.
    derive
  4. D.
    deviate

Sugar will ________fast in hot water．


  1. A.
    melt
  2. B.
    distribute
  3. C.
    dismiss
  4. D.
    dissolve

The children's activities out classroom ________from watching TV to playing Chess．


  1. A.
    rate
  2. B.
    range
  3. C.
    involve
  4. D.
    include

It is said that ________mammals such as whales and seals may communicate with each other verbally deep under the water．


  1. A.
    marine
  2. B.
    sea
  3. C.
    marinade
  4. D.
    ocean

My computer must be infected with virus, for it will ________ immediately when I ________．


  1. A.
    crash; log
  2. B.
    break; log on
  3. C.
    die; work
  4. D.
    crash; log on

The government has taken some measures to solve the problem of unemployment, but it may be some time ______ the situation becomes better.


  1. A.
    before
  2. B.
    since
  3. C.
    after
  4. D.
    unless

The students asked their teacher ________ the use of Indirect Speech ________ them.


  1. A.
    explaining, to
  2. B.
    explained, for
  3. C.
    explain, with
  4. D.
    to explain, to

You don't have to remind us．We are fully ________ of the gravity of the situation we are facing．


  1. A.
    awake
  2. B.
    alive
  3. C.
    aware
  4. D.
    active

In 1994, China began collecting income tax from people earning more than 800 per month, but only 1％ people earning more than ________．


  1. A.
    that
  2. B.
    it
  3. C.
    those
  4. D.
    one

It was ________ it rained hard ________ the football match had to be put off till next week?


  1. A.
    because of, which
  2. B.
    why, that
  3. C.
    why, which
  4. D.
    because, that
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