问题
选择题
______I’d have told you.[ ]
A. If I would have known it
B. Had I known it
C. If I had have known it
D. should I know it
答案
答案：B
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______I’d have told you.[ ]
A. If I would have known it
B. Had I known it
C. If I had have known it
D. should I know it
答案：B