If you work hard, you'll pass your exams., The boss won't be very pleased if you're late for the meeting., If Sarah is at school tomorrow, I will give her the books., If the weather is fine on Sunday, we'll go for a long walk., We'll be on time unless the bus is late., It won't work if you don't put the batteries into it., She'll miss the bus if she doesn't leave soon., If I have enough money, I'll buy some new shoes., I won't go unless you go too., Alison won't get into university unless she gets good grades.

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