问题
选择题
--- Tom, can you answer my question?
--Er, I’m very sorry, Miss Evens. I___________ about something else.
A.had thought
B.was thinking
C.will think
D.have thought
答案
答案:B
题目分析:表示过去某一时间正在进行的动作,用过去进行时,故选B。
点评:根据时间状语、上下文或是具体语境来判断时态。