must have must not not have have do must must do must
1
.
You
to
put
on
your
seat
bealt
when
driving
.
It's
a
rule
.
2
.
We
have
a
lot
of
work
tomorrow
.
You
not
be
late
.
3
.
The
museum
is
free
.
You
to
pay
to
get
in
.
4
.
You
really
stop
driving
so
fast
or
you'll
have
an
accident
!
5
.
You
not
speak
too
loud
,
the
baby
is
sleeping
.
6
.
You
to
do
that
Jane
,
I'll
do
it
later
,
don't
worry
.
7
.
You
wear
a
helmet
"
,
said
the
pólice
officer
.
8
.
You
not
smoke
inside
the
school
.