Resposta :
2. We would buy a house if we had money.
3. They'd pay the bill of they had money.
4. I'd write a letter of I had time.
5. They'd go to the beach if the weather was good.
6. He'd read a book of he understood English.
7. I'd take a medicine if it was necessary.
8. I'd go to her party if she was my friend.
9. They'd pay us if they were honest men.
10. I'd sell this old house if I had a new one.