问题

Were you surprised by the ending of the TV series? — NoI ______ the novel, so I already knew the story valign=”top” style=”width:193.1pt;padding:0cm 5.4pt 0cm 5.4pt”
A: was reading
B: had read
C: am reading
D: have read
B: had read
C: am reading
D: have read
正确答案是: