Sentence 1: Jennifer was worried about her kids. 
 Sentence 3: When they came home, their skin was all red 
 Sentence 4:  Jennifer put aloe on them and warned them not to do that again 
 Sentence 5:  They promised they would be more responsible 
 Option 1: They had forgotten to bring their swimsuits to the people and wouldn't be let in!. 
 Option 2: They were at the pool and had forgotten their sunscreen.