Exercise 1: Identify the one that has a mistake by circling the corresponding letter a, b, c, d and then correct it. 1. If we will reduce the speed of population growth, there will be less pressure on the earth. A b c d 2. Unless we leave a bowl of water under the sun, it will evaporate. A b c d 3. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis. A b c d 4. If I am 10 centimeters taller, I would play basketball. A b c d 5. If the doctors could find in the remedy, a lot of people would be saved. A b c d 6. If she bought that house now, she ran out of money. A b c d 7. What you would do if you could speak French well? A b c d 8. If I were you, I will go to the dentist’s and have the tooth checked. a b c d 9. What would happen because I pressed that red button? a. b. c. d 10. If the weather is fine today, we would go to the beach. a. b c. d. 11. If you will study harder, you will surely pass the coming exams with good results. a. b. c. d 12. If the weather weren’t too bad, we would to go swimming. a. b. c. d 13. If he weren’t too old, he would apply to the job as a war reporter. a. b c. d 14. If drivers obeyed the speed limit, fewer accidents occur. a. b. c. d 15. If tomorrow the weather will be bad, the match will be postponed. a. b. c. d. 16. If you will see Mike today, please ask him to phone me. a. b. c. d.