If you work hard, you'll pass your exams., 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., 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., That boy will get into trouble if he doesn't wear his uniform.

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