Get in touch with me as soon as possible if you change your mind about the trip. A. Should you change your mind about the trip, contact me as soon as possible B. If you changed your mind about the trip, get in touch with me as soon as possible. C. You should call me whenever you changed your mind about the trip. D. Having changed your mind about the trip, you should get in touch with me soon 22. Without his help, we would all die. A. We died because he didn’t help us. B. He didn’t help us, so we died. C. If it hadn’t been for his help, we would all have died D. If he had helped us, we wouldn’t have died. 23. But for Helen acting so wonderfully, the play would be a flop A. Helen acted so wonderfully, but the play was a flop. B. If it wasn’t for Helen’s wonderful acting, the play would be a flop C. The play was a flop although Helen acted so wonderfully. D. The play was a flop although Helen was such a wonderful actor. 24.In my experiments, the liquid is cooled to 32ºF. It always freezes. A. If you cool the liquid to 32 degrees, it froze. B. If you cooled the liquid to 32 degrees, it would freeze. C. If you cool the liquid to 32 degrees, it will freeze. D. If you had cooled the liquid to 32 degrees, it would have frozen. Exercise 3: Identify the one that has a mistake by circling the corresponding letter A, B, C, D. 25. If she bought that house now, she ran out of money. A B C D 26. What you would do if you could speak French well? A B C D 27. If I had known he is not at home, I wouldn’t have gone all the way to his house. A B C D 28. If I had known that the road were flooded, I would never have taken that way. A B C D 29. If I were you, I will go to the dentist’s and have the tooth checked. A B C D 30. If tomorrow the weather will be bad, the match will be postponed. A B C D