I
don't
understand
____________________
he
decided
to
quit
the
job
.
Can
you
explain
____________________
the
experiment
yielded
unexpected
results
?
She
is
uncertain
about
____________________
she
should
approach
the
situation
.
We
need
to
figure
out
____________________
the
mysterious
sound
is
coming
from
.
How
are
you
planning
to
achieve
your
long
-
term
goals
?
The
detective
is
investigating
____________________
the
crime
occurred
.
The
professor
asked
the
students
____________________
they
thought
about
the
controversial
topic
.
How
did
you
come
up
with
such
a
creative
solution
to
the
problem
?
The
team
is
curious
about
____________________
the
competitor
managed
to
outperform
them
.
____________________
did
you
decide
to
pursue
a
career
in
neuroscience
?
I
can't
remember
____________________
I
last
saw
her
.
____________________
is
responsible
for
the
sudden
increase
in
expenses
?
We
need
to
determine
____________________
will
be
attending
the
conference
.
The
detective
is
investigating
____________________
committed
the
crime
.
____________________
did
you
choose
that
particular
course
of
study
?
Can
you
explain
____________________
the
project
deadline
was
extended
?
____________________
was
the
book
recommended
by
your
friend
?
I
wonder
____________________
she
always
arrives
late
to
the
meetings
.
____________________
did
you
react
to
the
unexpected
news
?