With the loss of labor，the old farmers ________at home had to choose less labor?intensive crops.

A．having left B．to leave C．left D．leaving

 

C

【解析】考查非謂語動詞。句意為：隨著勞動力的減少，留在家里的老齡農(nóng)民只能選擇種植那些不需要太多勞動力的莊稼。leave與farmers是邏輯上的動賓關(guān)系，故應(yīng)用left作后置定語。

 

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