Yesterday, when I went to his office, he ______ online for some information. I think it will be an interesting lecture.
A.searched
B.was searching
C.would search
D.has searched
答案:B
本题考查时态。根据时间状语yesterday及句意“当我进入他办公室时”可知,用过去进行时。句意:昨天,当我进入他办公室的时候,他正在上网搜寻一些信息,我认为这将会是一个有趣的讲座。