He asked Tom why he was late for class .不对哇！没Tom怎么不对呢? 你直接引语中的最后一个单词就是Tom.在直接引语中,Tom是作的称呼语,变成间接引语后, 它就成了asked 的宾语.还可变成: He asked why Tom was late for class . 如果你实在不想要Tom,那就变成另外的吧! He asked me why I was late for class . 不过根据原句的意思,还是前面两种较好.