With more forests being destroyed, huge quantities of good earth each year.
A. is washing away
B. is being washed away
C. are washing away
D. are being washed away
网友回答
A. is washing away
B. is being washed away
C. are washing away
(答案→)D. are being washed away
解析：考查主谓一致。quantities of+名词作主语时，谓语动词要和quantities保持一致，要用复数形式，所以排除A,B；且earth和wash away是动宾关系，所以要用被动语态。选D。