Sentence 1: Brad was a soccer coach inflating soccer balls for practice. 
 Sentence 3: None of the balls were inflated enough for practice 
 Sentence 4:  He ran to a sports store 1 mile away and bought another pump 
 Sentence 5:  He managed to get the balls ready before practice started 
 Option 1: He used an air compressor to fill them all quickly. 
 Option 2: The needle on the air pump broke while inflating.