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【题目】Light travels faster than sound.(改为一般疑问句)

_______ light______faster than sound?

【答案】Does travel

【解析】

句意:光的传播速度比声音快。

谓语travels是实义动词travel的一般现在时的第三人称单数形式,变为一般疑问句时,句首用助动词does,谓语用动词原形travel。故填Does, travel

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