When
It is time to go.
When is it time to go?
They are scared.
Why are you scared?
You are sick.
Are you sick?
You are going home.
When are you going home?
You are doing that.
Why are you doing that?
It is snowing.
Is it snowing?
He will visit friends
When will he visit friends?
He looks tired.
Why does he look tired?
They helped you.
Did they help you?
She walked to the park.
When did she walk to the park?
She watched TV.
Why did she watch TV?
She learns fast.
Does she learn fast?
You came to work.
When did you come to work?
They spoke too fast.
Why did they speak too fast?
You saw a wolf.
Did you see a wolf?