---Whydoyousuggestwebuyanewmachine?---Becausetheoldoneh...

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--- Why do you suggest we buy a new machine?

--- Because the old one has been damaged ___________

A. beyond reach B. beyond repair C. beyond control D. beyond description

解析考点是介词短语。beyond是介词，意为“（程度）超出”，beyond repair是“无法修理”。题意是“因为旧机器已经烂得无法再修理了。”故选B。