问题
选择题
The air quality in the city, ______ is shown in the report, has improved over the past two months. [ ]
A. that
B. it
C. as
D. what
答案
答案：C
搜题请搜索小程序“爱下问搜题”
The air quality in the city, ______ is shown in the report, has improved over the past two months. [ ]
A. that
B. it
C. as
D. what
答案：C