Read the following sentence: after hiking all morning, rafael and his friends needed a rest, so they sat down on a large rock and ate their lunches. how would this sentence be corrected? after hiking all morning, rafael and his friends needed a rest so they sat down on a large rock and ate their lunches. after hiking all morning, rafael and his friends needed a rest. so they sat down on a large rock and ate their lunches. the sentence is correct as is.