I can’t stand him.He always talks as though he ___ everything.A.knew B.knows C.has known D.had known

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I can’t stand him.He always talks as though he ___ everything.
A.knew B.knows C.has known D.had known

A
在as if,as though 等引导的方式状语 从句中,表示与事实相反时,要用虚拟 语气.从句动作与主句动作同时发 生,从句谓语用过去时(be 用were ) 句意为:我不能忍受他.他总是说的 好像他什么都知道一样