Задание по английскому. Past и Present Conditionals. Chose the right form to complete the sentences.

1. If Harry (weren't/hadn't been) a wizard, he wouldn't (be able/have been able) to do the things he could.
2. But for the queue, Bob would (buy/have bought) a ticket for a football match yesterday.
3. If John (didn't vanish/hadn't vanished) so unexpectedly, I would (explain/have explained) to him all the complicated things then.
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 your aunt (didn't enroll/ hadn’t enrolled) you at that nearby school, you would (have/have had) to go to school by bus.