Julia must understand the question. It is necessary.
  It is necessary that Julia _____ the question.
  A) understood
  B) understands
  C) must understand
  D) should understand

  You might have cleaned the bath after you'd used it.
  I wish you _____ the bath after using it.
  A) had cleaned
  B) cleaned
  C) would clean
  D) clean

  I've got a friend _____ father is a pilot.
  A) whom
  B) of which
  C) who
  D) whose

  The department head insisted that he _____ absolute authority to regulate office works.
   A) gives
   B) is given
   C) would give
   D) be given
   E) would be given

  A: What started the fire?
  B: Nobody knows _____ .
  A) who started the fire
  B) what started the fire
  C) what starts the fire
  D) who'd started the fire

  I wish our school _____ a bigger library than it has.
  A) had had
  B) would have
  C) had
  D) will have

  It is a pity you drink too much. If only you _____ so much.
  A) don't drink
  B) won't drink
  C) didn't drink
  D) hadn't drunk

  The Prime Minister clearly suspects his party to have little chance of
  winning the next election.
  The Prime Minister clearly suspects that his party _____ little chance
  of winning the next election.
  A) to have
  B) has
  C) would have
  D) had

  I knew that _____ would be difficult.
  A) their coming
  B) they would come
  C) they came
  D) they were coming

  The factory _____ he works is closing down.
  A) that
  B) which
  C) where
  D) whom