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：考查词组辨析：这几个词都有“许多，大量”的意思，A和C项修饰可数或不可数名词，谓语的单复数和quantity的数保持一致，B项修饰可数名词， D项应该是plenty of修饰可数或不可数名词，这句话修饰money and energy，所以排除B和D，因为be动词用的是is，所以用a large quantity of，句意：每年大量的钱和精力都花在了环境保护上了。选C。