Every year money and energy is spent on environment protection.
A. large quantities of
B. a large number of
C. a large quantity of
D. a plenty of
网友回答
A. large quantities of
B. a large number of
(答案→)C. a large quantity of
D. a plenty of
解析：此题考查“许多的，大量的”表达法，题中money， energy 为不可数名词，因此B 不对 a large number of 修饰可数名词复数，D 选项应把a去掉，plenty of 修饰可数名词不可数名词都可以，A选项中large quantities of +n（可数或不可数）作主语时，谓语动词都用复数。C选项中. a large quantity of +可数名词复数作主语时，谓语动词用复数，+不可数名词作主语时，谓语动词用单数。题中谓语动词为is ，因此选C。