 Complete the following phrase:  Ice hockey has been played at the Winter Olympics since 1924 and was played at the summer games in 1920. Hockey is Canadas national winter sport, and Canadians are extremely passionate about the game. The nation has traditionally done very well at the Olympic games, winning 6 of the first 7 gold medals. However, by 1956 its amateur club teams and national teams could not compete with the teams of government-supported players from the Soviet Union. The USSR won all but two gold medals from 1956 to 