Nowadays．all passengers go through safety check before take a train．( )A．canB．mayC．mustD．will 题目和参考答案——青夏教育精英家教网—

题目内容

20．Nowadays．all passengers go through safety check before take a train．（　　）

A．

can

B．

may

C．

must

D．

will

分析翻译：现在，所有乘客乘火车之前必须经过安全检查．

解答 can表示能力或请求许可； may表示请求、可能性或表示祝愿；must 表示主观上的看法或表示必要性和义务（现在或将来时）；will表意志、意愿、允诺，可用于多种人称．根据句意，所有乘客乘火车之前必须经过安全检查，故选：C．

点评情态动词表示说话人对某一动作或状态的态度，区分每个情态动词表达的意思是正确选择的关键．

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