Do not try to repair the computer yourself ________ you are an expert.


  1. A.
    if
  2. B.
    that
  3. C.
    unless
  4. D.
    because

The cars ________ yesterday sell very well．


  1. A.
    what I saw
  2. B.
    that I see
  3. C.
    what I see
  4. D.
    that I saw

Kitty will stay here for ________ to help us.


  1. A.
    sometime
  2. B.
    sometimes
  3. C.
    some time
  4. D.
    some times

I have a science class _______ Monday.


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

This boat ________ a duck.


  1. A.
    likes
  2. B.
    look likes
  3. C.
    looks like
  4. D.
    looks likes

These are your new trousers. Please________.


  1. A.
    put it on
  2. B.
    put on it
  3. C.
    put them on
  4. D.
    put on them

The shop ________ at six p. m.


  1. A.
    is close
  2. B.
    closed
  3. C.
    closes
  4. D.
    is closing

One of ________ throwing a Frisbee．


  1. A.
    the boys is
  2. B.
    boy is
  3. C.
    the boys
  4. D.
    the boys are

Computers ______ because we can get lots of information.


  1. A.
    are used wide
  2. B.
    is use widely
  3. C.
    is using widely
  4. D.
    are used widely

English ______ a lot for business between different countries.


  1. A.
    uses
  2. B.
    used
  3. C.
    has used
  4. D.
    is used
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