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He said that light ____ much faster than sound.
A.traveledB.travelsC.is travelingD.had traveled
B

试题分析:考查时态:主句是过去时的时候,宾语从句一般是相应的过去时,但如果宾语从句是客观真理的时候,主句即使是过去时,从句也应该是一般现在时。句意:他说光比声音的速度快。选B。
点评:英语中的时态主要由动词的形式决定,因此在学习英语时态时,要注意分析动词形式及具体语境,想象在那个特定的时间动作所发生的背景,这题容易错当成过去时,但是看清句意后,会发现这是客观真理,还是一般现在时。
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