—Why are those people gathering in the middle of the street?—I don’t know. There ________ be an accident.
__ an old worker, so he knew exactly what to do.
Her expression suggested that she ___ happy.
Would you please send your daughter ___ me at the station.
Mr. Crossett ___ his old friend when they met at the railway station.
All over the world __ people take part in different kinds of sports.