Though __ of danger ,sightseers have been flocking to the site where Bin Laden lived.为什么填warned 而不是 being warned?
问题描述：
Though __ of danger ,sightseers have been flocking to the site where Bin Laden lived.
为什么填warned 而不是 being warned?
答
因为是被动语态，而且缺主语
答
being有进行的含义。
答
though在此作连词,完整句子应是though they are warned of danger,动词warn与sightseers为被动关系.如果想用being+过去分词作状语 则不需要though 这涉及主语省略问题啦 反正though引导从句必须有主语
答
因为后面有主语还有have been flocking to 现在完成进行时 前面不应重复