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.