?o.......... your b............
open your book
?
stand up
?May I ............ in?
May I come in?
?M........... I go ..........?
May I go out?
?Don't t..............
Don't talk
?
sit down
?c.............your b...........
close your book
?Be q..............!
Be quiet!
?look at the ..............
look at the board.