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.
It’s right already fbdjddbdcnf change
1. D) 1744
2. A) The new Massachusetts state constitution changed the lives of enslaved people living there.
3. C) Because Elizabeth’s life story was recorded by historians or people who knew her secondhand, so the author has to guess what she might have been thinking.
4. B) Elizabeth Freeman was born into slavery and fought for her freedom in court when a new Massachusetts state constituion was passed, and lived the rest of her life as a free Black woman who was paid for her labor.