If-clause

If Julia ______(give) me the letter, I will post it for her .

If I ____________________ (notice) you, I would have said hello.

What will happen if you ____________________ (not know) the answer?

If Bert ____________________ (see) you, he would have talked to you.

People ____________________ (live) in peace if they stop fighting.

If Susan ____________________ (learn) the poem she would have known the answer.

If it ____________________ (be) too hot we will stop and get a cold drink.

If they ____________________ (be) rich, they would travel around the world.

I’m sure Benny ____________________ (come) if you wait a bit longer.

If the Professor spoke clearly we __________________________ (understand) him better.