_____ we discover life on another planet, will it be intelligent?
  A) As soon as
  B) When
  C) Until
  D) If

  We _____ helped you even if we had wanted to because we did not
  know how to do it.
  A) may not have
  B) can't have
  C) might not have
  D) couldn't have

  "They built a statue of him lest people should forget what he had
  done." means: _____ .
  A) They built a statue of him so that people would not forget what he
  had done.
  B) They built a statue of him because people wouldn't forget what
  he had done
  C) As people would forget what he had done one day, they built a
  statue of him
  D) Believing that it was necessary for people not to forget what he
  had done, they had a statue of him built

  She returned from work. She noticed that the front door was open.
  _____, she noticed that the front door was open.
   A) Before returning from work
   B) Upon returning from work
   C) While returning from work

  Speak to him slowly _____ he will understand you better.
  A) in order
  B) so that
  C) for
  D) that

  Since he's not interested in classical music, he _____ .
  A) hasn't gone to the concert
  B) would have gone to the concert
  C) had decided not to go to the concert
  D) was supposed to go to the concert

  How fast _____ you _____ when the accident ___?
  A) were / driving / happened
  B) did / drive / was happening
  C) will / drive / had happened
  D) are / driving / will happen
  E) - / drive / happens

  _____ the semester is finished, I'm going to rest a few days and
  then take a trip.
  A) Whenever
  B) Now that
  C) In spite of
  D) In order to

  I _____ my hand when I _____ the dinner.
  A) was burning / cooked
  B) had burnt / am cooking
  C) shall burn / shall cook
  D) burnt / was cooking
  E) have burnt / cooked

  I like to relax _____ I'm on holiday.
  A) while
  B) before
  C) if
  D) as soon as