While
I
____________________
____________________
on
my
project
,
my
computer
crashed
.
They
____________________
____________________
at
the
concert
when
it
suddenly
ended
.
She
____________________
____________________
a
picture
when
her
phone
rang
.
While
we
____________________
____________________
dinner
,
the
lights
went
out
.
He
____________________
____________________
home
when
he
got
a
flat
tire
.
They
____________________
____________________
football
when
it
started
raining
.
She
____________________
____________________
a
book
while
waiting
for
the
bus
.
What
____________________
you
____________________
at
9
o'clock
yesterday
?
While
I
____________________
____________________
TV
,
my
friends
were
playing
games
.
The
dog
____________________
____________________
loudly
when
the
doorbell
rang
.
