根据句意，从方框中选择恰当的短语填空，有的需要变换形式。

spend time on,  go off,  get on with,  in order to  as soon as

 
My alarm ___________at 6 every morning.
We should ___________our schoolwork
We ___________our friend and we often help each other.
He got up early ___________catch the early bus.
I’ll call you ___________I get home from work.