一Did he notice you enter the classroom?一I don’t think soHe to the radio with his eyes sh

问题补充：

一Did he notice you enter the classroom?

一I don’t think so．He to the radio with his eyes shut·

A. 1istened

B. was listening

C. has listened

D. had listened

答案：

A. 1istened

(答案→)B. was listening

C. has listened

D. had listened

解析：考查时态，句意是：--他注意你进入教室了吗？--我不知道，他眼睛闭上在听广播。由此可知他听广播是在我进教室的时候，用过去进行时。选B。

考点; 考查时态