O Выполнить упражнение:
Choose the right tense form.
1. Nina has been learning/has learned English for 2 years.
2. The birds have already flown/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 coming.