Not until he took off his dark glasses ___________ he was a famous film star.

   A. had I found    B. did I find    C. I found    D. found I

Not until he took off his dark glasses ___________ he was a famous film star.

   A. had I found    B. did I find    C. I found    D. found I

Not until he took off his dark glasses ___________ he was a famous film star.

Not until the man i，n black took off his dark glasses     that he was the famous film star.

A. did I realize    B. I realized    C. was I realized    D. I have realized

Not until the man i，n black took off his dark glasses    that he was the famous film star.

1. A.
   did I realize
2. B.
   I realized
3. C.
   was I realized
4. D.
   I have realized