Sentence 1: Blaine missed a lot of school. 
 Sentence 3: She worked hard to make his attendance better 
 Sentence 4:  Slowly things improved 
 Sentence 5:  Now he has good grades because he is at school more often 
 Option 1: He was sick very often and couldn't get out of bed. 
 Option 2: His mom was worried about getting in trouble.