问题
Isn’t it amazing that I met Francis at the Christmas party—ReallyFor how many years ____ each other
A:didn’t you see
B:haven’t you seen
C:hadn’t you seenD.don’t you see;
D:don’t you see;
B:haven’t you seen
C:hadn’t you seenD.don’t you see;
D:don’t you see;
正确答案是：
