Some can never go above 4000 meters, because their body is unable to ___________ these extreme conditions.


  1. A.
    adopt to
  2. B.
    adjust
  3. C.
    adapt to
  4. D.
    admire

Babies enjoy ______ before they go to sleep.


  1. A.
    to pat
  2. B.
    to be patted
  3. C.
    patting
  4. D.
    being patted

In the past few years, research has suggested that Vitamin D may increase the level of serotonin（血清素）, one of the key nurotransmitters influencing our mood, and ________it helps to relieve mood disorders.


  1. A.
    that
  2. B.
    where
  3. C.
    what
  4. D.
    which

The professor has ______ 11-year-old boy who has______ gift for dancing.


  1. A.
    a; a
  2. B.
    an; the
  3. C.
    an; a
  4. D.
    the; 不填

She has long been expecting a chance to study abroad and at last she got____.


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

It was seven o;clock in the morning ____ he came back.It was really at seven o’clock ___ he came back from work this morning.


  1. A.
    that; that
  2. B.
    when;when
  3. C.
    when; that
  4. D.
    that;when

They ___classes when the earthquake happened.


  1. A.
    had
  2. B.
    would have
  3. C.
    were having
  4. D.
    are having

So _____ in the darkness that he didn't dare to move an inch.


  1. A.
    he was frightened
  2. B.
    was he frightened
  3. C.
    frightened he was
  4. D.
    frightened was he

Mr. Stevenson is great to work for—I really couldn’ t ask for a _______ boss.


  1. A.
    better
  2. B.
    good
  3. C.
    best
  4. D.
    still better

Not until _____ his shoes did he enter one of the rooms of the Japanese house.


  1. A.
    he removes
  2. B.
    did he remove
  3. C.
    he had removed
  4. D.
    had he removed
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