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

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

选项 A、breaks
B、has broken
C、were broken
D、had been broken

答案C

解析 as if 引导的从句常用虚拟语气。表示与现在的事实相反用一般过去时,如果是动词be,无论主语是单数还是复数一律用were。表示与过去的事实相反用过去完成时;表示与将来的事实相反用过去将来时。根据题意本题选C。
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