试题题干
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
（efficient）What is so impressive about their society is the 
of the public services.
参考答案
试题解析
the后缺少名词。
句意：他们的社会令人印象深刻的是公共服务的效率。
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
（efficient）What is so impressive about their society is the of the public services.
the后缺少名词。
句意：他们的社会令人印象深刻的是公共服务的效率。