During the press conference,the chairman remained silent when( )his opinion about the strike.
问题描述：
During the press conference,the chairman remained silent when( )his opinion about the strike.
A.asking B.being asked C.asked D.to be asked,选哪个啊
答
这里只能是C了 when asked = when he is asked 状语从句中省略掉主语和be但句子本身应该还有问题,正确的句子应该是the chairman remained silent when asked (about) his opinion about the strike....