Present Perfect with for and since

We haven't spoken to each other _____ a long time.

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We haven't talked ______ we left school.

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We haven't had such a bad weather _____ 1999.

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We've known each other _____ ages.

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I haven't seen her _____ she left home.

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I've been a teacher ____ 20 years.

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You've been here twice ____ September.

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Kate and Paul have been married ______ 25 years.

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Everything has changed _____ our child was born.

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I haven't been to school _____3 weeks.

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