Is there a story in front of it?
Answer:
Why did Phillis Wheatley write "On Being Brought from Africa to America"? to describe the horrors of slave ships to tell what it was like in her native land to emphasize that blacks may become Christians to encourage people to bring Africans to America
Explanation:
Over its sixty-year lifetime, the B-52’s avionics, flight hardware, and weapons systems have been upgraded. In 2006, the fleet received a “mid-life” upgrade to its avionics, adding modern processors and navigation systems. In 2014, the Air Force gave the BUFFS their first new communications system since the 1960s, including full-color LCDs to replace the old cathode ray tube screens. <span>On the weapons front, the airplanes are due to receive weapons-bay upgrades, enabling them to hold more smart bombs, and radar enhancements, potentially including the Active Electronically Scanned Array Systems technology. Used by fighter jets like the F-22 Raptor, the digital radar system is vastly more precise and offers higher resolution than conventional radar dishes. </span>
If you are telling us to revise the sentence, one error is that there is a double negative. 'not' and 'un' would cancel each other, and the revised sentence 'I wouldn't say he's the nicest guy around, but I've seen him behave kindly before.'