Having checked the doors were closed, and _________ all the lights were off, the boy opened the door to his bedroom.
--An explosion at a coal mine of Panzhihua killed at least 43 workers and left another 3 missing. --Yes,_______ news came as _______ shock to us all.
Tom was the first man _______ after the accident.
How long do you think ________the car factory launches a new model?
_______ in her graduation paper, Mary has no time to do a part-time job.
-- Hello, I _______ to ask if I can book two tickets for tonight’s film. -- Sorry, we’ve already sold out.