Question

2. She/do/two rooms. She has done two rooms. 3.1/read/Tolstoy stories/ in the park for two hours.
4. I/read/three stories.
5. Granny/knit/in the living room/ since morning.
6. Look! She/knit/a sweater/for me.
7. My sister/skate/since childhood.
8. She/take part/in many competition so far.
9. Helen/travel/round Europe/for 3 weeks.
10. She/visit/already/3 countries.​

Answer 1

Это задание на употребление Present Perfect (используется, когда важно подчеркнуть результат действия) и Present Perfect Continuous (используется, когда важна длительность действия)

3. I have been reading 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. Look! She has knitted a sweater for me.

7. My sister has been skating since childhood.

8. She has taken part in many competition so far.

9. Helen has been travelling round Europe for 3 weeks.

10. She has already visited 3 countries.