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先做判断题(音频在判断题)Fill in the blanks according to what you hear on the tape.—Can you______________________ please?—Certainly sir.

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—I think there has been a _____________.

—I'm sorry sir. What seems to be the _________?

—I think you have_______________________ for the same thing. Look, the __________________of 5.50appears___________________ here.

—I'll just go and _______________________sir.

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