—Have you been to the Great Wall?—Perhaps not in my memory.，it might have been during my e

—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

A. If anyB. If so(答案→)C. If everD. If not解析：C解析　句意为：——你去过长城吗？——在我记忆中好像没有去过。要是去过的话，或许是在童年。if ever如果曾经，该句完整形式为：If I have ever been to the Great Wall，...。if any如果有一些(表示数量)；if so如果那样；if not如果不。

我学会了