According to what he complained about,something must have gone wrong with the computer,______?According to what he complained about,something must have gone wrong with the computer,_didn't it_____?这里没有表过去的时间状语,为什么用didn‘t,而且助动词是have,表过去的话,不应是hadn’t吗?
问题描述：
According to what he complained about,something must have gone wrong with the computer,______?
According to what he complained about,something must have gone wrong with the computer,_didn't it_____?
这里没有表过去的时间状语,为什么用didn‘t,而且助动词是have,表过去的话,不应是hadn’t吗?
答