7. You must leave now or you will be late for school.
If  You leave now , you won't l be late for school.
3. "Could you show me the way to the nearest station?" she said to me.
She asked me if i could show me the way to the nearest station
. My grandmother doesn't live with us.
I wish My grandmother lived with us.
. He started doing the exercises at three o'clock.
The exercises have been done since  three o'clock