1
.
While
I
____________________
____________________
(
HAVE
)
breakfast
,
the
cat
____________________
(
BREAK
)
the
vase
.
2
.
They
____________________
____________________
(
STUDY
)
when
the
teacher
____________________
(
ARRIVE
)
.
3
.
While
Mary
____________________
____________________
(
DRIVE
)
her
car
,
she
____________________
(
SEE
)
an
accident
.
4
.
While
I
____________________
____________________
(
WALK
)
in
the
forest
,
a
fire
____________________
(
START
)
.
5
.
I
____________________
____________________
(
WASH
)
the
dishes
when
my
husband
____________________
(
COME
)
home
.
6
.
You
____________________
____________________
(
SLEEP
)
when
the
earthquake
____________________
(
HAPPEN
)
.
