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    精英家教网 > 高中英语 > 题目详情
    In crowded places like_____airports and railway stations,you _______ take care of your luggage.
    A．canB．mayC．mustD．will
    C
    must意为“应该,必须,一定”,表示出于主观意识而必须要做某事。根据所提供的情景“in crowded places like airports and railway stations”可判断出在拥挤的地方像飞机场和火车站必须看管好自己的行李。can意为“能,会”,用于表示能力。也可表示可能性,意为“(可)能,会得，(偶然,有时)会”。may意为“或许,也许,可能,也说不定”,表示可能性。will构成一般将来时,作情态动词的意思是“要,希望”,用于表示现在的意志愿望等。
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