Only in recent years ______ to realize the importance of wildlife conservation.


  1. A.
    do people begin
  2. B.
    have people begun
  3. C.
    people have begun
  4. D.
    people begin

We walked as fast as we could _____ to catch the train.


  1. A.
    hoping
  2. B.
    to hope
  3. C.
    we hoped
  4. D.
    being hoped

It would be unfair to clone any extinct animals       they were to live in a zoo.


  1. A.
    or
  2. B.
    if
  3. C.
    but
  4. D.
    whether

All the people on the list must be told to attend the meeting; you must make sure that no one is _______．


  1. A.
    left out
  2. B.
    set aside
  3. C.
    cut off
  4. D.
    kept away

Tigers _______ meet-eating animals ________ meats.


  1. A.
    belonged to; feed on
  2. B.
    belonging to; feed on
  3. C.
    were belonged to; feed on
  4. D.
    belonging to; feeding on

Scientists still wonder whether cloning will help or harm us and where it ____ us.


  1. A.
    has led
  2. B.
    is leading
  3. C.
    had led
  4. D.
    would lead

It was dark,and the rainy weather ______ the suffering of the lost travelers in the mountain.


  1. A.
    added to
  2. B.
    led to
  3. C.
    belonged to
  4. D.
    related to

"I must be off now "she said,and ______ that she hung up the phone.


  1. A.
    at
  2. B.
    after
  3. C.
    with
  4. D.
    upon

____ will do you good to do some exercise every morning.


  1. A.
    It
  2. B.
    There
  3. C.
    Those
  4. D.
    You

You should have put the milk into the icebox, I expect it ______ undrinkable.


  1. A.
    became
  2. B.
    had become
  3. C.
    has become
  4. D.
    becomes
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