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.