---Where is my reference book? It was here a moment ago.---Someone ___ it by mistake.
All the staff in our company are considering _________ to the city center for the fashion show.
Ten people died in the car accident, two children _________.
__________ and happy, Tony stood up and accepted the prize.
.His health requires that he ________ to bed early.
.I shall never forget the day ________ Liu Xiang won the gold medal, _________ has a great effect on my life.