Students are often warned that anyone who leaves the classroom at night must remember to __________ all the lights, or he will be fined.
— I hope you won’t mind my pointing out your mistake. — _______.
— Has he finished his report yet? — I’m not sure. He _______ the report these days.
— When will the new bridge be completed? — It is said that it _______ by the end of this year.
_____ in prison for ten years, he seems to be unaware of what has happened outside.
— Did your father catch the train? — No. The train _______ before we got to the railway station.