题目内容：

直接改间接引语中过去时改过去完成时吗?
如:he said,;"were the windows open?"
或者he said,"why didn't she help me?"
或者有这样的时间状语
he said,"how did lucy come that night?"
都要变为过去完成时吗?请帮忙改下以上三句.
有说法为:有过去具体的时间可不改时态.that night算过去具体的时间状语吗?