______the doors were closed and that all the lights were off, the boy left the classroom.
. I have to get back ______ because I promised June to take her to the theatre at 6:00.
. Our success depends ______ everyone works hard or not.
. ______ in bed, the boy ______ to his mother saying that he had a bad headache.
. With a ______ expression on her face, she is _______ about what to do next.
. He has three brothers, ______ is a doctor.