Ответ:
If my train is late .....
I won't be able to meet you at the airport.
If she hadn't driven so fast ....
she would have noticed them at the bus stop.
He would tell you the truth ...
if he knew it was important for you.
I wouldn't have given my plans up if ....
I had known it was so important for you too.
We would buy a computer if .... we hadn't gone to the sea trip.
They would laugh at you if .... you told them about the accident.
You wouldn't call him names if .... you knew him better and were more polite.
I would have come to the theater if ....
I knew you were there.
I hadn't seen it with my own eyes, ....so if I had seen it I could tell you more.
If I could speak with her in private, ....I would tell her everything in detail.