Mike has recently caught A-H1N1. ________, he will have to be away from school for several days.
The lack of money forced them to________their research.
The professor________at the meeting will give us a lecture next week.
The little girl________the bus as soon as it stopped,but to her disappointment,there were no seats left.
He________his leg when he________in a football match against another school.
From the dates________on the gold coin,it is confirmed that it was made five hundred years ago.