If people ___ enough sleep, they ___ tired. (not get, feel)
If people don’t get enough sleep, they feel tired.
If you ___ ice, it ___. (heat, melt)
If you heat ice, it melts.
If it ___ tomorrow, we ___ at home. (rain, stay)
If it rains tomorrow, we will stay at home.
If we ___ now, we ___ there on time. (leave, arrive)
If we leave now, we will arrive there on time.
If it ___ cold tonight, we ___ a fire. (be, make)
If it is cold tonight, we will make a fire.
If the sun ___, it ___ dark. (set, get)
If the sun sets, it gets dark.
If she ___ more confident, she ___ for the job. (be, apply)
If she were more confident, she would apply for the job.
If we ___ a car, we ___ more often. (have, travel)
If we had a car, we would travel more often.
If they ___ earlier, they ___ the train. (leave, catch)
If they had left earlier, they would have caught the train.
If you ___ water to 100°C, it ___. (heat, boil)
If you heat water to 100°C, it boils.
If he ___ so fast, he ___ fewer mistakes. (not speak, make)
If he didn’t speak so fast, he would make fewer mistakes.
If she ___ me earlier, I ___ her. (call, help)
If she had called me earlier, I would have helped her.
If I ___ you, I ___ that decision. (be, reconsider)
If I were you, I would reconsider that decision.
If they ___ the instructions, they ___ the problem. (follow, solve)
If they had followed the instructions, they would have solved the problem.
If I ___ more time, I ___ another language. (have, learn)
If I had more time, I would learn another language.
If you ___ too much sugar, you ___ weight. (eat, gain)
If you eat too much sugar, you gain weight.
If she ___ harder, she ___ the exam. (study, pass)
If she studies harder, she will pass the exam.
If he ___ late again, the teacher ___. (be, get angry)
If he is late again, the teacher will get angry.
If I ___ about the meeting, I ___. (know, come)
If I had known about the meeting, I would have come.
If I ___ the answer, I ___ you. (know, tell)
If I knew the answer, I would tell you.