E. Обведите правильный вариант ответа: 1) I think I’ve heard / been hearing that song before. 2) They haven’t arrived / been arriving yet, but they should be here soon. 3) You’ve written / been writing that email for over an hour. How long is it going to take you? 4) Have you talked / been talking on the phone since eight o’clock? 5) Jo has already invited / been inviting Shirley to dinner. 6) I’ve read / been reading an interview with Brad Pitt, but I haven’t finished it yet. 7) Have the boys played / been playing computer games since this morning?