---I telephoned him twice and I couldn't get through to his home.---I think that the line might have been out of order, ____?A don't you B do you C wasn't you D hadn't itI don't know the key,I feel B is right.
热心网友
首先，I think是作为插入语，反意疑问句不予考虑然后，将从句的判断句改为陈述句就是the line was out of order,所以应该是wasn't it.可是怎么没这个选项，我觉得应该是这样做的
热心网友
选D“I think+宾语从句”的反意形式应用从句中的谓语结构,而一般对于表猜测的反意疑问句来说,反意形式应用表示客观存在意义的助词充当谓语结构,而一般不能用情态动词,第2句话的事实存在意义表示为:The line had been out of order.(打不通他家电话之前电话已经断线了,所以这里最合适用过去完成时.)所以D是最佳答案.注意如果是“he thinks+宾语从句”或“she thinks+宾语从句”,那么反意形式应用主句中的谓语结构.