My
best
friend's
parents
(
to
buy
)
____________________
a
new
computer
last
week
.
They
had
already
set
up
the
hardware
,
but
they
still
had
to
install
the
software
.
They
didn't
know
what
to
do
,
so
the
dad
picked
up
the
Windows
box
and
(
to
ask
)
____________________
his
wife
:
'How
do
we
get
the
box
into
the
computer
?
'
.
I
(
to
think
)
____________________
he
was
joking
,
so
I
(
to
fall
)
____________________
onto
the
floor
laughing
.
Unfortunately
,
he
didn't
laugh
and
asked
me
to
leave
.
