The system of numbers that nearly everyone use today ________ the numbers from 1 to 9 and 0．


  1. A.
    are
  2. B.
    consist of
  3. C.
    is
  4. D.
    consists of

Five times zero equals ________．


  1. A.
    five
  2. B.
    ten
  3. C.
    fifty
  4. D.
    zero

Is a human brain a more powerful ________ than a computer?


  1. A.
    calculator
  2. B.
    calculate
  3. C.
    calculating
  4. D.
    calculation

We are all ________ at the ________ news．


  1. A.
    amazing; amazing
  2. B.
    amazed; amazed
  3. C.
    amazed; amazing
  4. D.
    amazing; amazed

It ________ the computer thirty seconds to finish ________．


  1. A.
    took; calculating
  2. B.
    took; to calculate
  3. C.
    spent; calculating
  4. D.
    spent; to calculate

________ her help, I finished my homework in time．


  1. A.
    For
  2. B.
    With
  3. C.
    In
  4. D.
    On

Do you know the ________ answer ________ the question?


  1. A.
    accurate; of
  2. B.
    accurately; to
  3. C.
    accurately; of
  4. D.
    accurate; to

The club consists ________ ten members．


  1. A.
    in
  2. B.
    of
  3. C.
    at
  4. D.
    from

The population of Tianjin is smaller than _______ of Shanghai.


  1. A.
    this
  2. B.
    that
  3. C.
    these
  4. D.
    those

John is the ______ one I want to work with. He is such a lazy boy.


  1. A.
    first
  2. B.
    last
  3. C.
    only
  4. D.
    best
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