A
Rebus
.
I'M
pretty
and
useful
in
several
ways
,
Yet
many
by
me
often
shorten
their
days
,
Take
one
letter
from
me
,
and
I
shall
appear
What
young
men
are
fond
of
all
days
in
the
year
;
Take
two
letters
from
me
,
then
I'm
without
doubt
What
you
likewise
are
,
if
you
don't
find
me
out
.