By no means, I was warned, to give the password to someone else.
A. was I
B. I was
C. could I
D. I could
网友回答
(答案→)A. was I
B. I was
C. could I
D. I could
解析：考查部分倒装。I was warned是插入语，主句是By no means to give the password to someone else，By no means绝不，是否定意义的词组，放在句首时，句子谓语要用部分倒装，排除B,D；句子用的be to do结构，所以选A。