I. Выбирите правильную форму.
1. If Jane (weren't/hadn't been) a real witch now, she wouldn't (be/have been) able to turn people into animals so often.
2. If John (didn't vanish/hadn't vanished) so unexpectedly, I would (explain/have explained) to him all the complicated things then.
3. Mr. Adams is not a very popular teacher. If he (didn't drone/ hadn't droned) on at his lessons, his pupils would (listen/have listened) to him attentively.
4. If they didn't have a habit of messing around in class, they would always (know/have known) what answer to give.
5. If the door (didn't squeak/hadn't squeaked) when you were leaving the room, you wouldn't (wake/have woken) the baby.