Mr King didn’t know -----yesterday evening .

问题描述:

Mr King didn’t know _____yesterday evening .
A.when does his son come home
B. when his son cames home
C.when did his son come home
D.when his son came home
1个回答 分类:英语 2014-10-04

问题解答:

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很高兴回答你的问题
选【D】.
宾语从句的语序必须是陈述句语序,且主句是一般过去时,因此宾语从句也要用一般过去时.
再问: 为什么不能选B
再答: 因为主句是一般过去式, didn’t 所以从句也要用一般过去式,came
 
 
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