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3.John isn't a diligent student,for it is the third time he

来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:英语作业 时间:2024/05/13 17:54:11
3.John isn't a diligent student,for it is the third time he has been late,______?
a.wasn't
b.hasn't it
c.isn't it
d.hadn't he
为什么选c,这个好像是反身什么,我忘了,具体讲一下,
3.John isn't a diligent student,for it is the third time he
是反意疑问句,前面是否定用肯定,是肯定用否定.但比如:I don't
thinkhe is smart,is he?而第三人称就不一样了,如:She thinks he isn't smart,doesn't?这是看人称的变化与哪个是主句.