Составьте 12 предложений на -present perfect : 4 утвердительных, 4 отрицательных и 4 вопросительных с краткими ответами. заранние !

1.I have just clean the flat.
2.He has already come home.
3.I have already been in the shop.
4.We have met my sister today.
1.Have you ever been at the sea? Yes, I have.No , I haven't
2.Has she cleaned the floor? Yes, she has.No , she hasn't
3.Has he gone to school?Yes, she has. No , he hasn't.
4.Has my mother bought the new dress? Yes, she has. No, she hasn't.