英语中八大疑问词有：

一：疑问代词有四个：who (whom), whose, what, which

who 作主语

whom作宾语

whose作定语

what作主语或者宾语

which作主语或者宾语或者定语

二：疑问副词有四个：when, where, why, how都是作状语。

例句：

1.Who called you yesterday?

2.Who/whom are you waiting for?

3.Whose book is this?

4.Which is bigger, the sun or the earth?

Which book is yours?

I don't know which to choose?

5.What makes you think I am a doctor?

6.What are you doing now?

7.When will you go shopping?

8.Where did you go last week?

9.Why are you late for the meeting again?。