Answer:
She means her old self is gone and the new her(which is usually bad)is present.
Explanation:
The sentence in which the underlined infinitive phrase functions as a subject is the last one - to quickly move large groups of people is the purpose of public transportation.
<em>To quickly move </em>is the infinitive phrase, and it is a subject.
Answer:
a person who has great responsibilities, such as a king, is constantly worried and therefore doesn't sleep soundly