—What do you think of the meeting held yesterday evening?—It was a tiring one I kept falli

问题补充：

—What do you think of the meeting held yesterday evening?

—It was a tiring one,I kept falling asleep.

A. where

B. which

C. that

D. during which

答案：

A. where

B. which

C. that

(答案→)D. during which

解析： 考查非限制性定语从句，句意：你认为昨天晚上举行的会议怎么样？是令人厌烦的一次会议，在会议期间我一直在睡觉。在会议期间应用during the meeting，所以选D。