If we will reduce the speed of population growth, there will be less pressure on the earth. → will
(Corrected: "If we reduce...")

Unless we leave a bowl of water under the sun, it will evaporate. → will
(Corrected: "Unless we leave...")

If we continue to use fuels at the current rate, we would soon have to face a fuel crisis. → would
(Corrected: "we will...")

If I were 10 centimeters taller, I would play basketball. → were
(Corrected: "If I were...")

If the doctors could find in the remedy, a lot of people would be saved. → in
(Corrected: "If the doctors could find the remedy...")

If she bought that house now, she ran out of money. → ran
(Corrected: "she would run out...")

What would you do if you could speak French well? → would
(Corrected: "What would you do...")

If I had known he is not at home, I wouldn't have gone all the way to his house. → is
(Corrected: "If I had known he was...")

If I had known that the road were flooded, I would never have taken that way. → were
(Corrected: "If I had known that the road was...")

If I were you, I will go to the dentist's and have the tooth checked. → will
(Corrected: "I would go..."