Complex sentence: He returned to the provincial legislature in 1916 joining the provincial cabinet as Minister of Public Works and served in that portfolio until 1922 when he was offered a federal Cabinet position by Prime Minister William Lyon Mackenzie King.
Split into simpler sentences: He returned to the provincial legislature in 1916, joining the provincial cabinet as Minister of Public Works. He served in that portfolio until 1922 when he was offered a federal Cabinet position by Prime Minister William Lyon Mackenzie King.