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

分析 這個女孩回家上氣不接下氣．她肯定是一路跑回家的．

解答 答案是C．本題考查must表示推測的用法．has to 不得不；will會；need 需要．must準是，一定是，表示推測只能出現(xiàn)在肯定句中，表示有客觀依據(jù)的推測．本題中由上文的客觀依據(jù)"out of breath"，推測"她肯定是一路跑回家的"，所以答案是C．

點評 要在正確理解情態(tài)動詞的基本含義的基礎上，整體理解語境中的情感態(tài)度，做出合理的判斷．

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