According to a report, cigarette smoking in all indoor public places in China already.
A. will ban
B. has banned
C. will be banned
D. has been banned
网友回答
A. will ban
B. has banned
C. will be banned
(答案→)D. has been banned
解析：句意：根据报告，吸烟已经在中国所有室内公共的地方被禁止了。首先排除A和B没有用被动语态，已经禁止了可排除C，所以选D。