Can I say,<br/><br/>(a) <b><u>Many events was held / held</u></b> on Sports Day. Peter took part in the race competition. His friends congratulated him for winning / to win (the race).<br/><br/>(b) <u><b>When / After the events</b></u> ended, the headmaster gave prizes.<br/><br/>(c) The <u><b>Sports Day / Sports Day event</b></u>s ended by 10 a.m.