he says:"If he calls me,I will go." he says:"I heard that she is a student."怎么变成he said that.

he said that if he called him,he would go
he said that he heard she was a student
he said oh my god第二句不用变heard吗，第三句为什么不变oh his godheard 的原形是hear, 这里应为he said that he had heard she was a studentoh my god 可以算是一个固定搭配吧，应该不用变成hisheard 的原形是hear, 这里应为he said that he had heard she was a student？有点不懂，你给的不是he said that he heard she was a student么因为said 是过去式，而题目直接引语中heard 也是过去式了，所以变为间接引语时，heard应变为过去的过去，即过去完成时have heard也就是说您第二次给的对的？第一次给的是错的？是的