Among the sports in Canada,______is the sport which Canadians usually enjoy playing most.A

The US border with Canada is the ______ in the world.A．longest defended borderB．longest un

The plane______we flew to Canada is very comfortable.A．in thatB．in whichC．whatD．/

The highest peak in Canada is______, which is the Yukon Territory of northwest Canada.A．Mo

Canada participated in the North Atlantic Treaty Organization in the year______.A．1941B．19

In the Civil War,______and______stood by the Unions side.A．England; MexicoB．Canada; Mexico

The author suggests that in Canada during the 1950s ______.A.the urban population decreas