Every volcano has its own geology and history. Indeed, no two volcanoes are alike. Hence, each need to be studied separately so that its warning signals can be recognized. The two volcano-watching satellites now orbiting earth are simply not adequate. _____ .
  A) Even so, once a volcano has erupted, there is nothing men can do to stop it
  B) A volcano may be active, dormant or dead; all of them are of interest to the geologist
  C) For instance, the Pocoye Volcano in Guatemala began spouting lava hundreds of meters into the air two years ago
  D) A system six to eight such satellites, however, could keep a much more effective watch on the world's volcanoes
  E) It is the cracks on the surface of the volcano that allow these hot gases to escape

  Which Option can be equal revision for the given statement?
  The atmosphere does not come to an end at the level where balloons will rise no further.
  A) A balloon can not float any higher than the level at which the atmosphere stops.
  B) Balloons can rise as far as the point where the atmosphere finishes.
  C) A balloon is stopped from going further by the end of the atmosphere.
  D) Beyond the highest point that balloons reach there is still atmosphere.
  E) When a balloon can travel no more, it is because there isn't enough atmosphere to carry.

  Which Option can be equal revision for the given statement?
  They found only two survivors, but it was a week before they gave up their search for the others.
  A) At the end of the week the two survivors joined in the search for the others.
  B) They were only able to save two people though rescue work continued for a full week.
  C) By the end of the first week there was little hope of finding the missing two.
  D) Once those two were rescued at the end of the week, they abandoned the search for the others.
  E) Rescue-workers found two more victims after the search for them had lasted a week.

  Diane, always teasing, was known for her _____ , but as a result,
  nobody knew when to take her seriously.
  A) jocularity
  B) servitude
  C) logic
  D) austerity
  E) inclemency

  The play's _____ debut was not a good sign for the struggling
  producer.
  A) unsubstantial
  B) inauspicious
  C) copious
  D) disembodied
  E) immaterial

  I would naturally have felt extremely disappointed _____ .
  A) since he must have been by far the best applicant
  B) unless the competition has had very few entrants
  C) even though the two teams were extraordinarily well matched
  D) if they hadn't sent us an invitation to the concert
  E) as the first prize went to a racist author

  If the situation's that bad I suggest _____.
   A) you sell in
   B) you sell up
   C) you sell on
   D) you sell off

  Which statement is irrelevant ?
  (I) As forests are cut down, many wild animals are finding it harder to survive.
  (II) Sadly the range of the leopard, for instance, is but a fraction of what it formerly was.
  (III) They are, for instance, no longer to be found in Europe proper.
  (IV) Fortunately, there are instances of such endangered species managing to re-establish themselves.
  (V) In the Caucasus and northern Iran there are still some, but their numbers are decreasing rapidly.
  A) I
  B) II
  C) III
  D) IV
  E) V

  Tired of hearing the child whine for more candy, the babysitter
  finally _____ and offered him a piece of chocolate.
  A) relented
  B) abated
  C) rendered
  D) placated
  E) enumerated

  As heavy rain had been forecast for the area, _____ .
  A) record harvest are expected this year
  B) they would presumably cancel the excursion to the ruins in the valley
  C) I can't imagine why they neglected to take all necessary precautions to avoid flooding
  D) farm labors would have to work overtime and weekends
  E) the resulting floods caused widespread hardships