英语语法：特殊疑问句　　以特殊疑问词开头，对句中某一成分提问的句子叫特殊疑问句。
常用的疑问词有：what 、who 、whose 、which 、when 、where 、how 、why等。
例句： 　　1) How much is it?
It’s 50 yuan.
　　2) How many cars have you got?
I have got 6 cars.
　　3) How long is the Great Wall?
It’s about six thousands seven hundreds 　　 1) What’s thirty and forty?
It’s seventy.
　　4) When are we going to eat?
We are going to eat at half past twelve.
　　5) Who is that woman?
She is our English teacher.
　　6) Where are you from?
I am from China.
　　7) Why are you crying?
Because I am sad.
　　8) How old are you?
I’m twelve.
　　kilometers.
　　9) How big is Beijing?
Beijing has got about fourteen millions people.