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6.The girl was back home out of breath.She ________ have run all the way.(  )
A.has toB.willC.mustD.need

分析 这个女孩回家上气不接下气.她肯定是一路跑回家的.

解答 答案是C.本题考查must表示推测的用法.has to 不得不;will会;need 需要.must准是,一定是,表示推测只能出现在肯定句中,表示有客观依据的推测.本题中由上文的客观依据"out of breath",推测"她肯定是一路跑回家的",所以答案是C.

点评 要在正确理解情态动词的基本含义的基础上,整体理解语境中的情感态度,做出合理的判断.

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