【題目】My brother bought a telescope, ______ he could study the star in the night sky.

A.of whichB.through whichC.in whichD.on which

【答案】B

【解析】

考查定語從句。句意：我哥哥買了一架望遠鏡，通過它他可以研究夜空中的星星。介詞through 表示“通過/憑借（某種方式/方法）”；短語through the telescope意思為“通過望遠鏡”。分析句子結構，“______ he could study the star in the night sky是非限制性定語從句，先行詞是a telescope，指物，作介詞through的賓語，因此用“介詞through+which”引導非限制性定語從句。故選B項。

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