Which answers would you pick as correct?
Is it possible that both (Did you ever go/ Have you ever been?) are correct?
A: France is the best country I've ever been.
Did you ever go/ Have you ever been?
B: Yes, I have been / went two years ago
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Sign up to join this community"Have you ever been" is definitely better for this case.
"Did you ever go" implies a that the person being asked was supposed to "go". For example, "Did you ever go the grocery store like I asked?"