分类：教育/科学-外语学习
问题：lie过去式hisgreatdiscovery____hisde 
his great discovery ____ his determinatn and devotion to science.A.lied in   B.lay in这里的lie 意思是"在于",该用哪个过去式?
回答：his great discovery __B__ his determination and devotion to science. 
A.lied in B.lay in 
巧记lie和lay躺 
lie,lay,lain,lie in bed again; 
撒谎 lie,lied,lied,don't be a liar; 
产蛋 lay,laid,laid,a hen laid an egg; 
放置 A loy picked it up,and laid it in the bag.