1/ If Oanh had known how to solve the math problem, she wouldn't have gotten low marks.

2/ If you had said sorry, she wouldn't have gotten angry.

3/ If they had passed the exam, their family would be happy.

4/ If it hadn't rained a lot yesterday evening, we would have gone swimming.

5/ If the weather had been fine enough, I would have gone camping.

6/ If the computer hadn't broken down, she wouldn't have had to stop her work.

7/ If Thanh hadn't been angry, we would have said something to her.

8/ If our teacher had come, we wouldn't have canceled the party.

9/ If Quang hadn't been interested in the film, he would study his lesson.

10/ If I hadn't had a headache yesterday, I would have gone to school.

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