WH
Question Words what
询问有关某事的信息
asking for information about something
What is your name?
要求重复或确认
asking for repetition or confirmation
What? I can't hear you.
You did what?
what...for
问理由，问为什么
asking for a reason, asking why
What did you do that for?
when
问时间
asking about time
When did he leave?
where
询问在什么地方或位置
asking in or at what place or position
Where do they live?
which
询问选择
asking about choice
Which colour do you want?
who
问什么人或哪个人（主语）
asking what or which person or people (subject)
Who opened the door?
whom
问什么人或哪个人（对象）
asking what or which person or people (object)
Whom did you see?
whose
询问所有权
asking about ownership
Whose are these keys?
Whose turn is it?
why
问理由，问为了什么……
asking for reason, asking what...for
Why do you say that?
why don't
提出建议
making a suggestion
Why don't I help you?
how
询问态度
asking about manner
How does this work?
询问条件或质量
asking about condition or quality
How was your exam?
how + adj/adv
询问程度或程度
asking about extent or degree
see examples below
how far
问距离 distance
How far is Pattaya from Bangkok?
how long
问长度（时间或空间）
length (time or space)
How long will it take?
how many
问数量（可数）
quantity (countable)
How many cars are there?
how much
问数量（不可数）
quantity (uncountable)
How much money do you have?
how old
问年龄 age
How old are you?
how come (informal 非正式)
问原因，问为什么
asking for reason, asking why
How come I can't see her?
