变为间接引语Our teacher told us ,“Hainan is in southern China.”

变为间接引语Our teacher told us ,“Hainan is in southern China.”
变为间接引语Our teacher told us ,“Hainan is in southern China.”

变为间接引语Our teacher told us ,“Hainan is in southern China.”
变为间接引语应该是：
Our teacher told us that Hainan is southern China.
从句中的谓语动词之所以还用is是因为＂海南位于中国南面＂是一种客观事实,所以仍用is.