Ответ:
She arrives home earlier if she hadn't met her classmate on the way.
Do you think he would accepted us if we offered him better conditions?
We wouldn't serve eggs if you'd told us he was vegan.
I don't think he would have read the book if I didn't recommended it last summer.
Would you go to bowling with us if he had invited you?
He would never have started the training course if he knew it was going to be so useless.