If
water
____________________
(
be
)
cheap
,
people
____________________
____________________
(
waste
)
it
.
The
plants
____________________
____________________
(
die
)
if
you
____________________
____________________
(
not
water
)
them
.
If
it
____________________
(
rain
)
a
lot
,
the
river
____________________
____________________
(
flood
)
.
I
____________________
____________________
(
not
buy
)
the
purse
ir
it
____________________
more
than
$60
.
