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Imagineyouareataxidriver,apassengergetinyourcar,andyousupposetosuggesthim/hertheseizefastentheseat-belt.Whatotherexpressionyoucanuse?

题型：单选题

选项

A. Please buckle up.

B. Please buckle down.

C. I want you to buckle up.

D. Would you please buckle up, Sir/ Madam?

正确答案：D