—Were you surprised by the ending of the TV series? — No. I the novel so I already knew

问题补充：

—Were you surprised by the ending of the TV series?

— No. I the novel, so I already knew the story.

A was reading

B had read

C am reading

D have read

答案：

解析：考查时态。根据语境我已经知道这个故事，用过去时态，故我读过这个小说为过去的过去，用过去完成时，选B。