Students......... arrive before 9 a.m
must
I ..... thank the teacher for her help. (I really want to thank the teacher.)
must
You ............ forget to write your essay.
mustn't
............. we work outside today?
Can
We ............ be late. (It will be bad if we are late.)
mustn't
we............. do homework every night. (The teachers give us homework.)
have to
They ............. play sport. (That's the rule at their school.)
have to
Students ............ wear a uniform at college. It isn't necessary
don't have to
You .......... give me your homework tomorrow, if you like
can
You.......... enter this room, it's for staff only
can't
you/ get up early tomorrow? Make a question
Do you have to get up early tomorrow?
Children .........go to school until they are seven
don't have to
