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If we can this speed.we should arrive there in about two days. A. keep up B. kee

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If we can this speed.we should arrive there in about two days. A. keep up B. kee

If we can ________ this speed,we should arrive there in about two days.

A. keep up B. keep on

C. keep to D. put up

 

试题答案

A 

keep up“保持;坚持”。