1
.
If
you
press
that
button
,
the
light
(
come
)
____________________
on
.
2
.
It's
easier
to
sleep
if
(
you
/
not
/
be
)
____________________
____________________
stressed
.
3
.
The
teacher
gets
angry
if
(
we
/
not
/
work
)
____________________
____________________
work
hard
.
4
.
If
(
I
/
go
)
____________________
____________________
on
a
boat
,
I
always
feel
sick
.
5
.
His
mother
gets
annoyed
if
(
he
/
be
)
____________________
late
.
6
.
If
(
I
/
not
/
know
)
____________________
____________________
____________________
a
word
,
I
look
in
my
dictionary
.
7
.
They
play
football
if
(
they
/
not
/
have
)
____________________
____________________
____________________
any
homework
.
8
.
If
you
freeze
water
,
it
,
(
it
/
turn
)
____________________
to
ice
.
