At present, a large number of tress ________ around the world．


  1. A.
    are being cut down
  2. B.
    are being cut across
  3. C.
    is being cut down
  4. D.
    is being cut up

It remains to be seen whether plastic ________ are good to the students though they are popular in big cities．


  1. A.
    tractors
  2. B.
    tracklayers
  3. C.
    trackers
  4. D.
    tracks

________ for their help, we would be in a very difficult position.


  1. A.
    If it didn't
  2. B.
    Had it not
  3. C.
    Were it not
  4. D.
    Even if

________ agriculture plays an important role, people don’t attach importance to education．


  1. A.
    Where
  2. B.
    That
  3. C.
    In which
  4. D.
    In where

They insisted on immediate help ________ to the areas that had suffered the greatest loss in the storm．


  1. A.
    be given
  2. B.
    being given
  3. C.
    given
  4. D.
    gave

Advertisements make up a large part of each issue of such teenager magazines, ________ with fashion and beauty advice．


  1. A.
    all loaded
  2. B.
    all are loaded
  3. C.
    all loading
  4. D.
    all to be loaded

This example shows that we can be really good at something when we follow ________ feels right．


  1. A.
    that
  2. B.
    what
  3. C.
    we
  4. D.
    it

You'd better not leave the classroom until your homework________.


  1. A.
    will finish
  2. B.
    has been finished
  3. C.
    finishes
  4. D.
    is finished

They collected some dry branches and ________ fire to them to cook their lunch.


  1. A.
    set
  2. B.
    lighted
  3. C.
    caught
  4. D.
    made

He wants to find a job in a food factory which ________ still


  1. A.
    is; being built
  2. B.
    is; building
  3. C.
    is; to be built
  4. D.
    has; been built
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