—Have you been to the Great Wall?
—Perhaps not in my memory. , it might have been during my early childhood.
A. If any
B. If so
C. If ever
D. If not
网友回答
A. If any
B. If so
(答案→)C. If ever
D. If not
解析：考查省略句：句意：----你到过长城吗？---如果去过，或许不会在我的记忆。它可能是在自己的童年。If I have ever been to的省略。If any“如果有一些”，if so“如果这样”，if not“如果不”，选C。