1
.
____________________
devices
such
as
a
laptop
or
a
digital
camera
can
be
charged
by
a
solar
charger
.
2
.
A
washing
-
machine
or
vacuum
cleaner
can
help
you
____________________
time
and
energy
while
doing
housework
.
3
.
Generally
,
new
____________________
are
created
to
make
people's
lives
easier
and
more
comfortable
.
4
.
Any
electronic
devices
may
have
both
____________________
and
drawbacks
.
A
laptop
,
for
example
,
is
____________________
because
it's
portable
,
but
not
all
people
can
afford
it
because
of
its
high
cost
.
5
.
Thanks
to
____________________
technology
,
people
can
have
better
medical
treatment
.
