With more forests being destroyed, huge quantities of good earth ______ each year.

来源：百度知道 编辑：UC知道 时间：2024/06/25 09:53:20
A. is washing away B. is being washed away
C. are washing away D. are being washed away
请解释，谢谢

选D
主语是huge quantities 是复数，谓语动词是are...，同时要用被动语态——被冲走——的现在进行时，就是are being washed away

b

huge quantities of 修饰名词 做主语 谓语动词跟名词的单复数一致，这里earth --土壤-- 单数， 排除 cd， 土壤被冲走，被动，排除a

b 现在进行时的被动语态

b