问题补充:
his homework, he went out to meet his friends.
A. Having finished
B. finished
C. To be finished
D. To finish
答案:
(答案→)A. Having finished
B. finished
C. To be finished
D. To finish
解析:考查非谓语动词作状语。He和finish为主动关系,而且finish动作发生在谓语动作之前,故使用现在分词的完成时。不定式作状语位于句首时表目的,过去分词表被动完成。句意:完成他的作业后,他出去会他的朋友。