Not until the early years of the 19th century ________ what heat was


  1. A.
    man did know
  2. B.
    did man knew
  3. C.
    didn't man know
  4. D.
    did man know

Hurry up．The train ________．


  1. A.
    started
  2. B.
    is starting
  3. C.
    has started
  4. D.
    had started

There ________ a lot of rain these days．


  1. A.
    is
  2. B.
    was
  3. C.
    has been
  4. D.
    were

It ________ every day so far this week．


  1. A.
    rains
  2. B.
    has rained
  3. C.
    had rained
  4. D.
    will rained

They told us the film ________ an hour before．


  1. A.
    had begun
  2. B.
    begun
  3. C.
    was beginning
  4. D.
    have begun

By next May，she ________ here for a year．


  1. A.
    will work
  2. B.
    has worked
  3. C.
    has been working
  4. D.
    will have been

It ________ Mary and Dick who gave me these things the other day．


  1. A.
    is
  2. B.
    was
  3. C.
    are
  4. D.
    were

I ________ to go to the party，but I was busy．


  1. A.
    have planned
  2. B.
    was planned
  3. C.
    had planned
  4. D.
    plan

He didn't come to the party．Probably he had________ reason．


  1. A.
    any
  2. B.
    some
  3. C.
    certain
  4. D.
    one

The boy spent as much time as he ________ over his lesson．


  1. A.
    went
  2. B.
    can go
  3. C.
    could going
  4. D.
    could to go
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