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【题目】Optimism and pessimism are both powerful forces, and each of us must choose we want to shape our outlook and our expectations.

A.whatB.whichC.thatD.when

【答案】B

【解析】

考查宾语从句连接词。句意:乐观和悲观都是强大的力量,我们每个人都必须选择一个来塑造我们想要的观点和期望。根据题意可知,我们要在乐观与悲观之中选择一个,故应填which哪一个。A选项what不具有指定性,that引导名词性从句时无实际意义,when“何时”与题意不符。故选B项。

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