问题: 关于quantity选择题
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
选什么，为什么？
解答:
D
quantity做主语时 看它自己的单复数形式决定谓语动词
比如
Large quantities of food were on the table.
A large quantity of food was on the table
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