... tenses:
1- If you (find) a skeleton in the cellar don't mention it to anyone.
2- If you pass your examination we (have) a celebration.
3- What (happen) if I press this button?
4- I should have voted for her if I (have) a vote then.
5- If you go to Paris where you (stay)?
6- If someone offered to buy you one of those rings, which you (choose)?
7- The flight may be cancelled if the fog (get) thicker.
8- If the milkman (come) tell him to leave two pints.
9- Someone (sit) on your glasses if you leave them there.
10- You would play better bridge if you (not talk) so much