1. If we hadn't missed our train yesterday, we would not be late for the conference now.
2. if she hadn't failed her exam in Math last week, she would not has to take the exam again now.
3.if they told us the truth, we would know what to do now
4.if the plane arrived on time, we would not have problems with our luggage.
5.if i had some time for the picture gallery, we would know something about this modern artist now.
6.if the party was success, they would not arrange another party
7.if we went to Brighton, we would look suntanned at all.