Dr Bethune worked hard as if he ______.
问题描述：
Dr Bethune worked hard as if he ______.
Dr Bethune worked hard as if he ______.
a.never had felt tired b.had never felt tired c.never felt tired d .was tired never
答
as if 仿佛好像的意思 引导虚拟条件句因为主句谓语动词worked使用的是一般过去时,所以从句也是对过去事实的虚拟,对过去事实虚拟使用过去完成时.如果是对现在或将来的事实虚拟使用一般过去时.所以先淘汰CD.never是否...