30. Поставь правильную форму.

1) She has been cleaning the flat for four hours.
2) She has done two rooms.
3) I have read Tolstoy stories in the park for two hours.
4) I have read three stories.
5) Granny has been knitting in the living room since morning.
6) She has knitted a sweater for me.
7) My sister has skated since childhood.
8) She has taken part in many competitions.