1. Shut the window , otherwise it’ll get too cold in here.
If_________________________________________________________________
2. Be careful . Otherwise , you’ll break the TV.
If_________________________________________________________________
3. Opening all the windows is the best way to get some fresh air.
If_________________________________________________________________
4. Listening to the teachers carefully is the best way to understand the lessons.
If _________________________________________________________
5. If you don’t work hard ,you will fail the exam.
Unless ______________________________________________________________
6. If you aren’t careful , you’ll break the vase.
Unless___________________________________________________________
7. If he doesn’t hurry , he’ll miss the bus.
Unless___________________________________________________________
8. Unless she gets up early, she will be late for school.
Unless___________________________________________________________