If he were not so lazy, he would have passed his exams
=> ............................., he would have passed his exams

1. If he had not worked so hard, he wouldn't be where he is now

=> ............................................, he wouldn't be where he is now

1. If the concert (already/start) ...., we( not/allow) ...to go in

2.Unless the train (delay)......., we (be) there by now

1. If the island (be)...... still a tourist attraction, last week's earthquake (cause).... far more deaths
2. If the museum (charge)........for entry, a lot of people (not be) ....... able to visit it