1 Who are you waiting for? I'm waiting for my friend. Have you been waiting for him for a long time?Yes, I have been waing for an hour already.-Do you often wait for him here? Yes, I do.
2 What are you translating? I’m translating an article. How long have you been translating it? I’ve been translating it for two hours already. I translate three articles a week.
3 Don’t enter the classroom.The students are taking exams there. They have been taking their exam since 9 o'clock.The students take 4 or 5 exams every term.
4 Don’t go outside, it’s raining. It’s been raining since early morning. It often rains in autumn in Moscow.
5. Can I see Nikolay? No, he is having dinner.Wait a little bit.Has he been having dinner for a long time already?Yes, he has been having dinner for an hour already. He always has dinner at this time.