___________ work has been done to improve the people’s living standardA.ManyB.A great manyC.A great deal ofD.A large number of
网友回答
C解析试题分析：work工作，不可数名词。只有C,能与不可数名词连用。考点：短语之间的辨析点评：many,a great many,a large number of “许多”只与可数名词连用a great deal of , a large amount of 只与不可数名词连用。