I had no even a vague idea —was going to happen A of what B in which C in what D of which选择什么?为什么?

问题描述:

I had no even a vague idea —was going to happen A of what B in which C in what D of which
选择什么?
为什么?

A
have no idea of 对什么不知情;
what 在这里指“将要发生的”内容,引导宾语从句.