Researchers have found clear and convincing evidence ________ happiness isthe key to better health and longer lives.


  1. A.
    where
  2. B.
    whether
  3. C.
    how
  4. D.
    that

  The swimming pool is 80 meters _____ and 40 meters _______.


  1. A.
    in long; in wide
  2. B.
    in length; in width
  3. C.
    long; in width
  4. D.
    in length; wide

Once ____in the examination, your grade will be cancelled immediately.


  1. A.
    caught cheating
  2. B.
    caught to cheat
  3. C.
    catching stealing
  4. D.
    to be caught to steal

Before falling asleep, Helen always ______ the day’s happenings.


  1. A.
    reviews
  2. B.
    restarts
  3. C.
    requests
  4. D.
    reminds

_________ is a growing world problem, and nowadays the United Nations and its member countries _________hard to deal with it．


  1. A.
    Desertification; are working
  2. B.
    Desertified ; worked
  3. C.
    Desert; work
  4. D.
    Desertification; have worked

Plastic and rubber won't _________ electricity,but copper will.


  1. A.
    have
  2. B.
    do
  3. C.
    pass
  4. D.
    conduct

So ________ that no fish can live in it．


  1. A.
    the lake is shallow
  2. B.
    shallow the lake is
  3. C.
    shallow is the lake
  4. D.
    is the lake shallow

_______ Sunday, rather than _______ at home, I preferred _______.


  1. A.
    It being; stay; to travel
  2. B.
    Being; to stay; to travel
  3. C.
    shavings been; stay; travel
  4. D.
    It was; to stay; travelling

You can never be ______ when crossing the street.


  1. A.
    very careful
  2. B.
    too careful
  3. C.
    carefully enough
  4. D.
    enough careful

No one enjoys ________．


  1. A.
    laughing at
  2. B.
    being laughed at
  3. C.
    to laugh at
  4. D.
    to be laughed at
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