Sentence 1: Caroline loved to write novels in her spare time. 
 Sentence 3: Caroline really got into it 
 Sentence 4:  She loved the old keys and the sound 
 Sentence 5:  She typed her whole novel that way and felt great 
 Option 1: So for her birthday her mom gave her an old typewriter for fun. 
 Option 2: So for her birthday her mom gave her a new typewriter for fun.