—What was Tom doing when you went in
问题描述:
—What was Tom doing when you went in
—He had just finished his homework and _________ read a novel .
A .starting to B .had started to C .was starting to D .has started to
答
选C,进屋的时候汤姆刚刚做完家庭作业,正准备读小说.即在**进屋的时候正在准备着读小说呢