4. Make sentences using Present Perfect or Present Perfect Continuous.
Пример: She/clean/the flat for four hours. - She has been cleaning the flat for four hours.
1. Nina/learn/English/ for 2 years.
2. The birds/ already/ fly/ to the South.
3. They/learn/ the poem/since Monday.
4. Mike/forget/ to retell the story.
5. The children/watch/cartoons for 2 hours.
6. The train/come.