Jim often has lunch at school,_______ ______?Susan had to walk to school,____ ______?There is little milk in the fridge,______ _____?Nobody can help him,____ _____?It is impossible to finish the work in an hour,_____ ______?I don't think he will go there,_______ _______?

Jim often has lunch at school doesn't he?
Susan had to walk to school,didn't she ?
There is little milk in the fridge,is there ?
Nobody can help him, can they ?
It is impossible to finish the work in an hour,is it ?
I don't think he will go there, will he ?
改意反疑问句只要将前面句子里的谓语移到后面，并使用否定形式
但也有以下几种特殊情况：
1.当前面句子中有表示否定的词语（如nobody、never之类的），动词的形式不用改变
2.当前面的句子是祈使句是，后面的句子用will就可以了

Jim often has lunch at school,doesn't he?
Susan had to walk to school,didn't he?
There is little milk in the fridge,is there?
Nobody can help him,can they?

doesn't he
didn't she
isn't there

Jim often has lunch at school doesn't he?
Susan had to walk to school,didn't she ?
There is little milk in the fridge,is there ?
Nobody can help him, can they ?
It is impossible to finish the work in an hour,is it ?
I don't think he will go there, will he ?