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I kept looking at the man, wondering . A. whether I have seen him before. B. whe

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I kept looking at the man, wondering . A. whether I have seen him before. B. whe

I kept looking at the man, wondering _____ .
A. whether I have seen him before.      B. where I had seen him before
C. that I had seen him before         D. when I had seen him before.

试题答案

B