31．--I hear that an old couple are traveling around China by bike． --Oh, long way on their bicycles! They are so great．A．what a B．how C．what D．how a 【查看更多】

 

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--I hear that an old couple are traveling around China by bike．

--Oh,         long way on their bicycles! They are so great．

A．what a              B．how                   C．what            D．how a

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