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When a pencil is partly in a glass of water, it looks as if it . [ ] A.breaksB.h

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When a pencil is partly in a glass of water, it looks as if it . [ ] A.breaksB.h

When a pencil is partly in a glass of water, it looks as if it _______.

[]

A.breaksB.has brokenC.were brokenD.had been broken

试题答案

答案:C

解析:

as if引导从句内容与事实相反,常用虚拟语气。指现在情况,动词用一般过去时,无论人称如何,be总是用were;指过去情况用过去完成时。