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________ I come in? – Yes, you can.

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May I _________ the book, Mr. Tuan? – Yes, you can.

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________ you open the window, please? – Sure.

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Mai: Can I come in? - Lan: Sure. Come in and ________ a seat.

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________ Jame your friend? – Yes, she is my friend.

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Don’t ________ noise in class, boys and girls.

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Can I ________ to you for a second? – Sorry, I’m busy now.