Поставьте предложения в past indefinite и сделайте вопросительную и отрицательную формы. a) mike (to walk) to the corner. b) they (to sell) their house. c) the teacher (to finish) the work.

Mike walked to the corner.
Did Mike walk to the corner?
Mike didn't walk to the corner

They sold their house.
Did they sell their house?
They didn't sell their house

The teacher finished the work.
Did the teacher finish the work?
The teacher didn't finish the work.