Question

Only an hour ago ________ out why he was absent. A．did the teacher found B．the teacher foun.

Only an hour ago ________ out why he was absent. A．did the teacher found B．the teacher found C．did the teacher find D．had the teacher found

Answer 1

C

试题分析：句意，只是在一小时之前，老师才知道了他缺席的原因。当only+状语位于句首时，句子要用部分倒装。所谓部分倒装就是把谓语动词的一部分，即助动词、情态动词、系动词移至主语的前面。因为前面有了助动词或情态动词，所以后边的动词要用原形，故选C。 点评：英语句子中，当only所修饰的副词、介词短语或状语从句放在句首时，句子要用部分倒装。