Выберитеправильною форму глагола.1. Nina has been learning/has learned English for 2

Выберитеправильною форму глагола.
1. Nina has been learning/has learned English for 2 years.
2. The brids have already flowen/ have been flying to the South.
3. They have known/ have been knowing him for many years.
4 Mike has forgotten/ has been forgetting to learn the poem.
5. The children have been watching/ have watched cartoons for 2 hours.
6. The train has just come/ has been comming.
7. We haven't been having/haven't had a holiday for 5 years.