Question

I ________ the film star, so I ________ him when he walked out of the station．

1. A.
   know; know about
2. B.
   know about; recognized
3. C.
   recognized; recognized
4. D.
   know; knew

Answer 1

B
后一个空显然使用recognize“认出”，那么前一个空应该是“了解”。根据了解的情况，认出了影星。