\(I\). Rewrite these sentences:
1. They don't cut down trees. They save the Earth.
If .................................................................................
2. We tried our best. We didn't win the game.
We ..............................................................................
3. No one in class is taller than Tam.
Tam .............................................................................
4. Turn off the light before leaving or you will waste a lot of electricity.
If ..................................................................................
1.If they don't cut down trees, they will save the Earth.
2.We didn't win the game although we tried our best.
3. Tam is the tallest in the class.
4.If you turn off the light before leaving, you won't waste a lot of electricity.
1.If you don't save the earth,you will cut down trees
2.We will win the game ,if we tried our best
3.Tam is the tallest in my class
4.If turn off the light before leaving ,you won't waste a lot of electricity