I'll try it again．Never in my life such a particular difficulty．A. had I metB. have I met

问题补充：

Ill try it again．Never in my life such a particular difficulty．

A. had I met

B. have I met

C. I had met

D. I have met

答案：

A. had I met

(答案→)B. have I met

C. I had met

D. I have met

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