A、Brush your tEEth right BEForE you go to BED in thE EvEning.
B、hAvE As FEw oF your tEEth pullED out As possiBlE.
C．hAvE your tEEth x-rAyED At rEgulAr intErvAls.
D．ClEAn your tEEth shortly AFtEr EAting.