问题
选择题
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
答案
答案：D
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。