(单选题)
The Public Transport Commission's commitment to running our city's trains and buses as( )as possible has reduced cost to the taxpayer by 5%.
A.efficient
B.efficiency
C.efficiently
D.efficiencies
参考答案:C
参考解析:
空格处需要填入形容词或副词。填入形容词可修饰前面的名词或充当表语,填入副词则修饰动词。根据本句结构,空格处所填单词需要修饰running。故选副词C efficiently。
知识点:词汇辨析 英语 语法串讲(银保监不考) 金融业务 模考估分
