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You waste much time pig flu.on the internet..A.to knowB.knowingC.knowD.to be kno

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You waste much time pig flu.on the internet..A.to knowB.knowingC.knowD.to be kno

You waste much time______pig flu.on the internet..

A.to know

B.knowing

C.know

D.to be known

试题答案

B

B考查waste的固定用法。Waste----doing sth 浪费---做某事。