1.
I
had
already
finished
my
homework
before
my
friends
came
over.
【had
already
finished】
2.
She
had
studied
Spanish
for
three
years
before
she
went
to
Spain.
【had
studied】
3.
They
had
cleaned
the
house
before
their
guests
arrived.
【had
cleaned】
4.
He
had
eaten
his
breakfast
before
he
left
for
work.
【had
eaten】
5.
We
had
watched
the
movie
before
it
started
raining.
【had
watched】
6.
The
party
had
already
started
when
we
arrived.
【had
already
started】
7.
She
had
read
the
book
before
she
saw
the
movie.
【had
read】
8.
They
had
visited
New
York
twice
before
they
moved
there.
【had
visited】
9.
The
train
had
left
by
the
time
we
got
to
the
station.
【had
left】
10.
I
had
already
taken
a
shower
before
I
got
dressed.
【had
already
taken】
11.
He
had
finished
his
work
before
he
went
on
vacation.
【had
finished】
12.
She
had
worked
at
the
company
for
three
years
before
she
got
promoted.
【had
worked】
13.
They
had
seen
the
famous
landmark
before
they
took
the
tour.
【had
seen】
14.
We
had
already
made
dinner
when
our
guests
arrived.
【had
already
made】
15.
The
concert
had
started
by
the
time
we
found
our
seats.
【had
started】
16.
He
had
played
the
piano
for
ten
years
before
he
became
a
professional.
【had
played】
17.
She
had
already
booked
her
flight
before
she
packed
her
bags.
【had
already
booked】
18.
They
had
finished
the
project
before
the
deadline.
【had
finished】
19.
The
store
had
closed
when
they
got
there.
【had
closed】
20.
I
had
already
met
her
before
she
introduced
herself.
【had
already
met】