We
____________________
____________________
____________________
wear
a
uniform
at
our
school
.
(
mustn't
/
don't
have
to
)
.
Sarah
____________________
____________________
cycle
to
school
because
there
isn't
a
bus
.
(
has
to
/
can
)
.
They
____________________
leave
by
6
pm
or
they'll
miss
the
train
.
(
must
/
can
)
.
I
____________________
read
your
writing
.
What
does
it
say
?
(
mustn't
can't
)
You
____________________
walk
in
the
park
at
night
.
It's
dangerous
.
(
don't
have
to
/
mustn't
)
Sally
____________________
play
the
guitar
very
well
.
(
can
/
must
)
