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?

分类: 作业答案 • 2022-06-24 14:24:20

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