hard all day, I fell fast asleep.
A. Working
B. Having worked
C. Worked
D. To work
网友回答
A. Working
(答案→)B. Having worked
C. Worked
D. To work
解析：句意：辛辛苦苦干了一天的工作。我很快就睡着了。Working表动作同时同时进行；Having worked表动作在先；Worked表被动；To work表将来。结合句意是，work动作在先，故选B。
考点: 考查非谓语动词的用法。