1.What do you say when you want someone to say something aga

1.What do you say when you want someone to say something again?
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2.What do you say when you want to hear the tape agian?
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3.What do you say when you want to know a word in English?
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4.What do you say when you want don't konw how to spell a word?
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今晚要,不包括12：

pardon?
could you play the tape again
could you tell me how to say it in english
could you tell me how to spell it