I/you
Yes, I walked to school today.
Did you walk to school today?
Yes, we won the football match yesterday.
Did we win the football match yesterday?
Yes, they laughed at me.
Did they laugh at you?
Yes, he bought me a present.
Did he buy you a present?
Yes, I ordered a pizza last night.
Did you order a pizza last night?
No, I have not eaten today.
Have you eaten today?
No, we have not been given any homework.
Have we been given any homework?
Yes, they have spoken to me.
Have they spoken to you?
Yes, she has ridden a horse before.
Has she ridden a horse before?
No, we have not got any ice cream at home.
Have we got any ice cream at home?
No, I have never been in a car accident.
Have you ever been in a car accident?
Yes, we have paid.
Have we paid?
Have they met each other?
Has she won any prizes?
No, I have not done anything interesting today.
Have you done anything interesting today?
No, I had not heard of him before now.
Had you heard of him before now?
No, we had not been to England before last summer.
Had we been to England before last summer?
No, they had not seen it yet.
Had they seen it yet?
No, it had not arrived before I left the house.
Had it arrived before you left the house?
No, the band had never played here before.
Had the band ever played here before?
Yes, I had remembered to lock the door.
Had you remembered to lock the door?
Yes, we had earned a break.
Had we earned a break?
Yes, they had told us everything we needed to know.
Had they told us everything we needed to know?
Had she worn this outfit before?
Yes, the chef had cooked this dish before.