Where is he?
Why is he sad?
What is that?
When is the exam?
Who is she?
Why is he happy?
Where are they?
Who is crying?
When is your birthday?
Who makes dinner?
Why are you running?
Where is Jack?
trên xuống dưới và trái qua phải
where why
what when
who why
what when
where who
where what
when who
why where