If I were you, I _____
   A) will be celebrating
   B) would be celebrating
   C) would have been celebrating

  If we _____ a letter at 8 o'clock yesterday, we _____ on the same day.
  A) got / started
  B) had got / had started
  C) would get / had started
  D) had got / should have started
  E) should have got / had started

  If Neil Armstrong had lived in 1453, he _____ on the moon.
  A) couldn't walk
  B) wouldn't walk
  C) can't walk
  D) couldn't have walked

  If he had run a bit faster, he _____.
   A) can win
   B) could win
   C) could have won

  If the weather stays good, we _____ a game of tennis tomorrow.
   A) would play
   B) will play
   C) would have played
   D) will be playing

  If you _____ the invitation, he would be happy.
   A) accept
   B) accepted
   C) had accepted

  If I _____ the consequences of my action, I would not have acted so hastily.
  
   A) have realized
   B) realize
   C) realized
   D) had realized

  If I lose my job, I _____ for a new one.
   A) will look
   B) would look
   C) look

  She will come if you _____ her.
   A) invited
   B) had invited
   C) invite

  If you're not feeling well, take a hot bath. It'll _____ you good.
  A) do
  B) made
  C) help
  D) does