Human
beings
can
communicate
with
each
other
.
We
are
able
to
____________________
knowledge
,
beliefs
,
____________________
,
____________________
,
____________________
,
____________________
,
thanks
,
promises
,
declarations
,
feelings
?
only
our
imagination
sets
limits
.
We
can
laugh
to
express
amusement
,
happiness
,
or
disrespect
,
we
can
smile
to
express
amusement
,
pleasure
,
approval
,
or
bitter
____________________
,
we
can
shriek
to
express
anger
,
excitement
,
or
fear
,
we
can
clench
our
fists
to
____________________
determination
,
anger
or
a
threat
,
we
can
raise
our
eyebrows
to
express
surprise
or
disapproval
,
and
so
on
,
but
our
____________________
of
communication
before
anything
else
is
____________________
.
In
this
book
we
shall
tell
you
a
lot
about
language
,
but
as
a
first
step
towards
a
definition
we
can
say
that
it
is
a
system
of
communication
based
upon
words
and
the
combination
of
words
into
sentences
.
Communication
by
means
of
language
may
be
referred
to
as
linguistic
communication
,
the
other
ways
mentioned
above
?
laughing
,
smiling
,
shrieking
,
and
so
on
?
are
types
of
non
-
linguistic
communication
.
