Sentence 1: Mike loved planes, and he talked about them often. 
 Sentence 3: His dad feared Mike wasn't being realistic 
 Sentence 4:  But then after high school, Mike went into pilot training 
 Sentence 5:  He proved his dad wrong, and made his whole family proud! 
 Option 1: Mike knew that he could never fly planes since his sight would always be bad. 
 Option 2: He said he wanted to fly planes someday.