Each
breed
of
dogs
has
its
own
role
in
oir
world
.
Some
dog
____________________
,
for
example
,
can
be
trained
to
____________________
people
after
an
accident
.
Other
breeds
help
____________________
our
homes
.
People
usually
____________________
breeds
like
German
shepherds
,
rottweilers
and
bull
mastiffs
to
be
____________________
dogs
.
These
dogs
can
be
fierce
and
____________________
at
times
.
If
well
-
trained
,
however
,
they
are
____________________
pets
that
can
be
provude
their
owners
with
____________________
of
attention
,
as
well
as
love
and
____________________
.
