MOT SO BT 1. Pay electricity bill today or your electricity will be cut off. If....... 2. Stop smoking otherwise your cough may be worse. If.... 3. Unless we use less fossil fuel, they will be run out soon. If.... 4.I can't live in the country because I can't find a job there I'd ...... 4.I don't have a spare ticket. I can't take you to the concert IfI.... ?
