1
.
(
you
/
see
)
____________________
____________________
____________________
Bob
recently
?
2
.
Who
(
switch
)
____________________
off
the
lights
a
minute
ago
?
3
.
When
(
she
/
become
)
____________________
____________________
____________________
a
teacher
?
4
.
(
you
/
ride
/
ever
)
____________________
____________________
____________________
____________________
an
elephant
?
5
.
(
you
/
hurt
)
____________________
____________________
____________________
your
knee
when
you
were
playing
football
?
