You can__what is happening on the other side of the world by telephone.填什么?为什么?
问题描述：
You can__what is happening on the other side of the world by telephone.填什么?为什么?
答
you --主语,
can hear --谓语,
what is happening on the other side of the world ---由what引导的宾语从句,
by telephone --介词短语充当方式状语.