高中一道英语语法题,亲们帮我解释下～
问题描述：
高中一道英语语法题,亲们帮我解释下～
If ＿to speak,he has no problem expressing himself.
A.asked B.asking C.ask D.to be asked
选什么呢?If从句的主语怎么没有,是省略了吗?
答
选A
if (he is) asked to speak
省略了