sentences:  Intended for service as a "picket ship" in the Pacific, "Benner" received radar and other modifications at the Boston Navy Yard between 13 February and 21 March.She then sailed for Guantanamo Bay, Cuba, on the 28th, arriving there on the 31st.The destroyer conducted four weeks of shakedown exercises, including gunnery, antiaircraft, and anti-submarine warfare (ASW) drills.