【题目】Yesterday little Brian asked his teacher in class ________.
A.when did light travelled faster than sound.
B.how light travelled faster than sound.
C.why light travels faster than sound.
【答案】C
【解析】
句意:昨天小布莱恩在课堂上问老师为什么光比声音传播得快。
考查宾语从句。when did light travelled faster than sound.什么时候光比声音传播得快,一般过去时,疑问语序;how light travelled faster than sound. 怎么光比声音传播得快,一般过去时,陈述语序;why light travels faster than sound. 为什么光比声音传播得快,一般现在时,陈述语序。根据句意,空处的句子是宾语从句,应为陈述语序,故排除A项;宾语从句“光比声音传播得快”是客观真理,即使主句是过去时,从句也用一般现在时,故排除B项,故选C。
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