He was happy when he heard the news.这句话的缩写He was happy when heard the news还是He was happy when hearing the news

问题描述:

He was happy when he heard the news.这句话的缩写
He was happy when heard the news还是He was happy when hearing the news

He was happy when heard the news 首先肯定地是时态是过去式,不会是hearing,
He was happy when he heard the news,he省略