72. Подчеркни правильный вариант. .
1. Their parents have been/have being friends since their childhood.
2. They have known /have been knowing him for many years.
3. I haven't seen/ haven't been seeng Tom since Monday.
4. We haven't been having/ haven't had a holiday for 5 years.
5. She hasn't been having/hasn't had dinner since morning.
6. I have understood/have been understanding text.
7. Mike has forgotten/has been forgotting to learn the poem.
8. Dave has been/ has been being a student for 2 years.​