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.