“请假条”用英语怎么说？

Asking for leaving

Leave slip

April
16
Dear
Mr.Liu,
I'm
sorry
but
I
have
to
ask
for
a
three
day's
leave.Last
Saturday
I
went
swimming
in
the
river
,but
unfortunately
I
was
caught
in
the
rain
and
got
a
heavy
cold.The
next
day
mum
took
mt
to
the
hospital
and
he
doctor
asked
me
to
stay
on
bed.
So
I
cannot
go
to
school
today,
as
well
as
the
basketball
match
on
Tuedsay.I'm
really
sorry
for
that
and
I
will
go
back
to
school
as
soon
as
I'm
ok.
Yours,
Zhang
Hua

应该是补假条吧？
Dear
Teacher,
I
did
attend
the
English
class
because
I
had
a
fever
last
Friday.I
am
sorry
i
should
have
asked
a
sick
leave
in
advance.I
hope
your
could
forgive
me.And
i
will
never
do
this
work
after
my
absence.
Your
student
XXX.
DATEXX:.XX.XX

I
love
you！
Becouse
how
beautiful
you
are！
这样写就行了！