The little boy is very shy,he never speaks unless_____.答案为什么是spoken to?为什么要加to?
问题描述：
The little boy is very shy,he never speaks unless_____.答案为什么是spoken to?为什么要加to?
答
这个小男孩很害羞,除非别人跟他讲话否则他从来不说话,unless spoken to是 除非有人跟他讲话,是被动语态所以用过去分词,to是speak这个动词介词,必须加上.unless spoken to是“unless someone speaks to the boy” 的简洁的被动表达法