If I ( find ) a lot of money, I ( buy ) a big house.
If I ( be ) the president of my country, I ( build ) more hospitals.
If I ( know ) the answer, I (tell ) you.
If I ( don't smoke ) so much, I ( feel ) better.
If I ( be ) rich, I ( travel ) around the world.
I don't like Hollywood. I ( don't live ) there if I ( be ) a film star.
I ( go ) to work if I ( don't feel ) so ill, but I feel so awful.
What you do if your baby ( fall ) into the water?