_______ in the accident.


  1. A.
    Only were five men seriously hurt
  2. B.
    Only did five men were seriously hurt
  3. C.
    Only five men were seriously hurt
  4. D.
    Only five men were seriously hurted

_________ the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks．


  1. A.
    How
  2. B.
    Because
  3. C.
    If
  4. D.
    While

We’d like to go and thank him ourselves, ____________we don’t have his address.


  1. A.
    so
  2. B.
    and
  3. C.
    or
  4. D.
    but

I left very early last night, but I wish I _____ so early.


  1. A.
    didn’t leave
  2. B.
    hadn’t left
  3. C.
    haven’t left
  4. D.
    couldn’t leave

The librarian insists that John _____ no more books from the library before he returns all the books he has borrowed.


  1. A.
    will take
  2. B.
    took
  3. C.
    take
  4. D.
    takes

The captain urged that the mission ________ before dark


  1. A.
    must be finished
  2. B.
    be finished
  3. C.
    ought to be finished
  4. D.
    was finished

Do you have any idea of the reason _____ he referred to？


  1. A.
    that
  2. B.
    where
  3. C.
    why
  4. D.
    when

The problem ________ this material can be used in our factory has been solved.


  1. A.
    that
  2. B.
    what
  3. C.
    whether
  4. D.
    why

The first thing ________ I did was to see if there were any products ________ might help me, but there only seemed to be powders ________ to kill snakes.


  1. A.
    that; /; designed
  2. B.
    which; that; designed
  3. C.
    /; that; designed
  4. D.
    /; which; design

________ is very important in doing any scientific work.


  1. A.
    Album
  2. B.
    Category
  3. C.
    Accuracy
  4. D.
    Assume
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