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提示: Mary在一家电器店买了一台录音机, 回去后发现机器不转, 便拿来要求退货。店员请她指出问题, 并表示愿意替她修理。经检查发现是电源未接通。

(S = Shop assistant M = Mary)

S: Morning. 51 (   ), miss?

M: Uh, I'd like to return this tape recorder and get my money back. 

S: 52 (   ) ?

M: It doesn't work. 

S: I'm very sorry, but 53 (   ).

M: 1 got this recorder only yesterday. Are you sure it won't wrong again?

S: The service department in our store is quite good at that sort of thing. 54 (   ) what the trouble is?

M: It simply doesn't work. You see, none of the button works. Try it yourself. 

S: OK. Let me see. Oh, 55 (   ) Now it works very well. 

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