With more forests being destroyed, huge of good earth washed away each year.
A. are ; number ; is
B. / ; quantities / are
C. be ; number ; are
D. / ; quantities ;is
网友回答
A. are ; number ; is
(答案→)B. / ; quantities / are
C. be ; number ; are
D. / ; quantities ;is
解析：
试题分析:考查非谓语动词和主谓一致。在with +宾语+补语构成的复合结构中，补语应该用doing；to do 或者done，由此可以排除A、C选项。Quantities of +复数名词或不可数名词做主语时谓语动词应用复数形式，所以B选项正确。