一直搞不清楚反意疑问句的be动词选择

题目

一直搞不清楚反意疑问句的be动词选择
children were really poor,_____?
过去式的话.那什么时候用didn't they呢?
he had a breakfast,_____?
这里又要用什么,什么时候用had't he?
主要就分不清楚be动词到底看哪个.一般是看句子里的动词对把?
怎么有时候又出来助动词了.

答案

[children (were) really poor],_weren't they__?你看()里是were(be动词),[]中没有never,hardly,little等这些词,所以反意疑问用 weren't they.若是there (is) {little} water in the glass___?就填is there.因为()是...