相关试题
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If you want to book a round-trip ticket,youll have to pay__$30.
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If you want to telephone him,You'll have to__________up the number in the book．
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You have to be patient if you want to sustain your position.
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t a little more inconvenient if you dont pay up for a direct flight, in order to encourage you to f
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您需要补票.You have to buy another ticket.( )