Question

1, I didn't have enough money.Therefore,i couldn't buy a new house.

->if

2,peter needed money.That's why he sold his house.

->if

3,the fire has destroyed many buildings

->many buildings

4,the children didn't go to school until thay were 6

-> it was not until

Answer 1

1, I didn't have enough money.Therefore,i couldn't buy a new house.

->if i had enough money, i could have bought a new house

2,peter needed money.That's why he sold his house.

->if peter hadn't needed money, he wouldn't have sold his house

3,the fire has destroyed many buildings

->many buildings have been destroyed by the fire

4,the children didn't go to school until they were 6

-> it was not until the children were 6, they went to school

Answer 2

1, If I had had enough money, I could have bought a new house.

2, If Peter hadn't needed money, he wouldn't have sold his house.

3, Many buildings have been destroyed by the fire.

4, It was not until the children were 6 that they went to school.