答案：A

题目分析：英语宾语从句中一般为陈述语序。whether I had finished my work我是否完成了我的工作；if had I finished my work语序有误；that I had finished my work我完成了我的工作；how long had I finished my work搭配有误，finish表示瞬间动作，不能和表示一段时间的时间状语连用。句意：刚才老师对你说什么了？——她问我……。结合语境可知选A。