问题
选择题
________ work has been done to improve the people’s living standard.
A．A large amount of
B．A large number of
C．A great deal
D．A great many
答案
答案：A
考查短语辨析。A large amount of修饰不可数名词；A large number of和A great many修饰可数名词的复数；A great deal缺少介词of。Work不可数，用A large amount of。故选A。