If you plan to be there, brush up on your singing.
Perhaps he ought to go back to school for two or three years himself, and brush up.
But the other girls hadn't helped out enough with the equipment, and some of the boys needed to brush up on running the sound system.
It's also a good place to brush up on your French.
And it's not just children who could brush up their social skills.
The past was so close she could feel it brush up against her shoulder.
I usually try to brush up on the local language, but not this time.
You can brush me up on how to use it when I get home.
This is my next order: you're going back to school for a few months to brush up on your English.
There was no time to brush up on the language.