He had no idea of what he should say in answer to the question, ( ) he ?

he had no idea of what he should say in answer tothe questions,__?

did he?\u524d\u9762\u6709\u5426\u5b9a\u526f\u8bcdno
was based

A

你首先要搞明白，这个句子的主谓宾结构
主语是he
谓语动词是had
what he should say in answer to the question,是作为介词of后面的宾语存在的，称为宾语从句。
反义疑问句，都是对句子的谓语进行提问的，所以这里是对had进行反问，had的原型是have，这里用了一般过去时，所以用did he，选A。

当然A

扩展阅读：that s all right ... hagi no idea what to do ... have no idea to do ... as a result ... the teacher had no idea ... i had no idea a letter ... had no choice but ... get the hang of ... fly in the ointment ...