单项选择题
—Do you mind if I sit here, sir —_______. Plese sit down.I’m sorry, but I doB.NottllC.Of c
our—Do you mind if I sit here, sir—_______. Plese sit down.I’m sorry, but I do B.Nottll C.Of course D.Thnks lotA.I’m sorry, but I doB.Not at allC.Of courseD.Thanks a lot
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