1
.
You
____________________
take
your
cell
phone
with
you
.
2
.
You
mustn't
stand
still
for
a
long
time
.
3
.
You
____________________
____________________
wear
appropriate
clothes
.
4
.
You
____________________
to
take
food
and
water
with
you
.
5
.
You
don't
____________________
____________________
watch
the
t
.
v
.
