Переведите пожалуйста: 1) Сколько лет Джон работает в этой фирме? 2) Я точно не знаю,…

1) How many years has John been working for this company? Или (How long) 2) I don't know exactly, but when I began to work here, he had been working here for 3 years already.3) When did you phone to Moscow? 4) I haven't phoned there yet.5) Our students are writing the test in English, we have been writing it for 2 hours.6) But we have done only 5 tasks.7) When I entered the classroom, my friends had already been there.8) They had been sitting there for 10 minutes but the teacher hadn't come by that time yet.