问题
选择题
The doctor came up and asked me ______the day before.
A．what had I eaten
B．what I have eaten
C．what have I eaten
D．what I had eaten
答案
：D
：考察宾语从句的语序。所有的名词性从句都使用陈述语序，排除AC。共计时态可知使用过去完成时。句意：医生走过来问我：前天吃了什么东西。故D正确。