I couldn’t listen carefully in our English class this morning as I of the
ic book that I read before class.
A. have thought
B. thought
C. was thinking
D. had thought
网友回答
A. have thought
B. thought
(答案→)C. was thinking
D. had thought
解析：本题根据内容提示可知道需要的时态为过去进行时，故选C