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

A. breaks     B. has broken  C. were broken     D. had been broken

C


解析:

as if引导的从句,如果所说内容与事实不相符时,常用虚拟语气。此题是一种自然现象,故应用一般过去时。注意比较It seems/looks as if it is going to rain.(看起来天将要下雨。)

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