选词填空并解析（英语）@_@!

题目

选词填空并解析（英语）@_@!
Mot until quite recently ＿＿＿＿＿any idea what a cloned sheep was like.
A．did I have B.will I have C.I didn't have D.I had

答案

A Not until后面接倒装句