Why don’t you take a trip alone together?

Why did they wait upon him so servilely?

Why don't we go and see her in the hospital?

Tell me the reason why you married her.

I couldn't understand why she frowned at him.

Tell me the reason why she got angry.

He insulted her. That is why she got angry.

I wonder why he did not come to the party.

Why did he ask for so much money?

Let me know why it was that he came suddenly.