1. I wasn't born in Spain, so I don't speak Spanish fluently.
If I born in Spain, I Spanish fluently.
2. I'm in prison because the police caught me.
I in prison if the police me.
3. Toby didn't pass his exams, so his parents won't be happy.
If Toby his exams, his parents happy.
4. She doesn't love him, so she refused to help him.
If she him, she to help him.
5. He didn't work hard at school, so he doesn't have a good job.
If he hard at school, he a good job.
6. Tina didn't eat the paella because she doesn't like seafood.
Tina the paella if she seafood.
7. I didn't fix the leak because I don't know anything about plumbing.
I the leak if I something about plumbing.
8. You're hungry because you didn't have any lunch.
You hungry if you lunch.
9. John is very busy, so he didn't attend the meeting.
If John so busy, he the meeting.
10. You left the door open, so it's very cold.
If you the door open, it so cold.