1. We won’t hold the festival. It costs too much money. (if)  ………………………………………………………………………….……………………… 2. Teenagers should learn to mix with their classmate. They can try to get on with their siblings....

Mai Phương

1. 1)If it costs too much money, we won't hold the festival. (hoặc: We won't hold the festival if it costs too much money.)
2. 2)Teenagers should learn to mix with their classmates or they can try to get on with their siblings.
3. 3)Teenagers need encouragement from their parents, but not all their parents are willing to encourage their children.
4. 4)You won't get addicted unless you stop spending too much time playing games. (hoặc: Unless you stop spending too much time playing games, you'll get addicted. Hoặc: You'll get addicted unless you stop spending too much time playing games.)
5. 5)This flat was extremely expensive, for my father couldn't buy it.
6. 6)Farmers should plough their fields carefully, otherwise they won't have a bumper crop.
7. 7)They spend a lot of time surfing the net; therefore, they have little time to read books.
8. 8)Many girls worry about their appearance, so they often look at themselves in a mirror.