Sentence 1: The kids had been wanting a dog. 
 Sentence 3: One day their parents took them to look at puppies 
 Sentence 4:  They all fell in love with a black and white puppy 
 Sentence 5:  They decided to adopt it into the family 
 Option 1: They begged and begged their grandparents. 
 Option 2: They begged and begged their parents.