Question

—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

Answer 1

D

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。