Present perfect continuous

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I'm sorry I'm late,_______ for a long time?

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Somebody _______ my cookies. There are very few left.

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She must be tired. She ______all afternoon.

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I  ______ all afternoon? 

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They _______ for months.

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My mother ___ for the last two hours.

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Sam ___ fish for years.

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My parents ___ the walls all day today.

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We ___ the house since morning.

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Your father looks tired. He ___ his car all day.

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How long ___ Spanish?

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I ___ for this company for 5 years.

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How long ___ for us?