If it is worth doing, do it well.

In doing anything, you must do your best .

I've thought about it, and what we're doing is just not right, so let's break up after today.

Do as you're told to do.

Mum said the same thing. But, so what? It's got nothing to do with me.

Practicing what you learn is one of the most important "do's".

Do you want him?

Why don't you have Dad clean up his study?

They are to be married in June.

Anybody will do.