Sentence 1: Monica was putting her baby down for a nap. 
 Sentence 3: The baby started crying immediately 
 Sentence 4:  Monica had so stay with the baby or else he would cry 
 Sentence 5:  It took nearly thirty minutes to get him to go to sleep 
 Option 1: She laid the baby in it's crib and tried to leave. 
 Option 2: Monica put the baby in the crib and was able to sit down and have some lunch.