Unless you study, you won’t succeed , You will fail the exam unless you study , If you quit smoking, you will feel better, If you study this weekend, you’ll pass the test on Monday, If you don’t study, you will fail, If I have time, I will finish that letter, What will you do if you miss the plane?, If you drop that glass , it will break , If you don’t leave, I will call the police , If it rains, you will get wet,

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