must or mustn't ?

.............................. you play now?

not pay attention in class

Players .............................. brak the rules.

Footbal players ................................... score goals.

be late for class

I ........................... swim when I was four.

fail a test

use your mobile in class

return your library books to late

hand in your homework late

............................... borrow it tomorrow?

cheat in a test

Supporters .................................... be good at football.

The referee .................................. know the rules.

............................ you play last Saturday?

The goalkeeper ........................................ score goals.

drop litter

pay attention in class

You .......................... warm up before you start doing aby sport