问题
选择题
The children went home from the grammar school, their lessons ______ for the day.
A．finishing
B．finished
C．had finished
D．had been finished
答案
答案：B
此处考查独立主格结构。如选D项，their lessons前应加连词，所以D项不对；又由于their lessons与finish之间为动宾关系，所以A、C两项不对。故选B。