CATCH UP WITH I had to study a lot to catch up with the others.
KNOW-IT-ALL Max is such a know-it-all. He thinks he knows everything.
KEEP UP WITH She speaks English so fast, I can't keep up with what she's saying.
POP QUIZ The teach gave us a pop quiz today. I think I blew it.
DROP OUT Man, I'm tired of school. I think I'll drop out and do a little traveling.
BRUSH UP ON We need to brush up on our Spanish since we are going to Mexico next month for vacation.
to do whatever is necessary to stay level or equal with someone or something
to review
someone who annoyingly thinks he knows everything
improve and reach the same standard as other people
to quit school or someone who quit school
a surprise quiz
