根据中文提示，将对话中缺少的内容写在横线上，这些句子必须符合英文表达习惯。打句号的地方，用陈述句；打问号的地方，用疑问句。
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: I 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.
正确答案及解析
正确答案
解析
51.What can I do for you/Can I help you
52.What’s wrong with it/Anything wrong/What is the problem
53.we can repair/fit the machine for you
54.Can you show me
55.the power is not on/you do not turn on the power
