Ответ:
Объяснение: 1) Queen Elizabeth II of Great Britain is the longest-reigning monarch in British history.
2) Elizabeth soon started taking on other public duties.Appointed colonel-in-chief of the Grenadier Guards by her father, Elizabeth made her first public appearance inspecting the troops in 1942. She also began to accompany her parents on official visits within Britain.
3)The year 2012 marked the Diamond Jubilee of Elizabeth II being the 60th anniversary of the accession of Queen Elizabeth II on 6 February 1952. The only Diamond Jubilee celebration for any of Elizabeth's predecessors was in 1897, for the 60th anniversary of the 1837 accession of Queen Victoria.