本题考查加拿大的独立。In 1982 the British Parliament replaced the British North America Act with a new Canadian constitution. The act gave Canada total control over its constitution and cut the legal ties between Canada and Britain. Canada was finally a fully independent nation.1982年，英国议会把《英属北美法案》撤掉，换成加拿大宪法。该法案给了加拿大完全制定该国宪法的权力，并且放开了加拿大与英国之间的法律约束。至此，加拿大成为一个完全独立的国家。