Complex sentence: Cook was called as a general authority and member of the Second Quorum of the Seventy on April 6,1996, was transferred to the First Quorum of the Seventy on April 5,1998.
Split into simpler sentences: Cook was called as a general authority and member of the Second Quorum of the Seventy on April 6,1996. He was transferred to the First Quorum of the Seventy on April 5,1998.