“You owe me one.”

Memorize

Your coworker asked you to cover his shift on Saturday at your part-time job. You don't want to work on Saturday, but you agreed. Your coworker is happy, but you want to remind him that you might ask him to do the same thing one day. You say:

You owe me one.

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“What do I owe you?”

You're going to go to a concert with your friend. Your friend bought the tickets, and now he's giving them to you. You want to know how much they cost, so that you can pay him back. You ask:

What do I owe you?

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