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    The cost of rising fuel bills on to air passengers in the form of fuel surcharges. A. is being passed B. are being passed C. have been passed D. has passed 【查看更多】

     

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    The cost of rising fuel bills ____ on to air passengers in the form of fuel surcharges(额外费).

       A. is being passed                      B. are being passed   

       C. have been passed                   D. has passed

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