1
.
I
____________________
____________________
(
see
)
three
police
cars
this
morning
.
2
.
After
he
____________________
(
arrive
)
home
,
he
____________________
(
unpack
)
and
____________________
(
go
)
to
bed
early
.
3
.
A
:
What's
wrong
?
B
:
I've
____________________
(
break
)
a
glass
!
4
.
My
grandparents
only
____________________
(
know
)
each
other
for
a
few
months
before
they
____________________
(
get
)
married
.
5
.
I
____________________
____________________
(
be
)
in
London
for
three
years
.
I
love
it
here
.
6
.
We
____________________
(
see
)
Julie
last
night
.
7
.
He
____________________
(
be
)
a
teacher
before
he
____________________
(
become
)
a
musician
.
8
.
When
the
boss
____________________
(
walk
)
into
the
room
,
we
____________________
(
know
)
someone
was
going
to
get
fired
.
9
.
The
children
____________________
(
break
)
a
window
in
the
school
last
week
.
10
.
He
____________________
(
see
)
that
film
last
year
.
