问题补充:
They seemed each other for a long time.
A. knowing
B. to know
C. having known
D. to have known
答案:
A. knowing
B. to know
C. having known
(答案→)D. to have known
解析:考查非谓语动词。句意:他们好像彼此认识好久了。不定式的完成时态表示的是这个动作发生在谓语动作之前。故选D。
时间:2021-12-25 12:20:06
They seemed each other for a long time.
A. knowing
B. to know
C. having known
D. to have known
A. knowing
B. to know
C. having known
(答案→)D. to have known
解析:考查非谓语动词。句意:他们好像彼此认识好久了。不定式的完成时态表示的是这个动作发生在谓语动作之前。故选D。