I can't write you an entire essay dude...but i can help you with it.
In the introduction sum up what you are going to talk about it...The first thing you write in your introduction should be your hook, a hook is something you catch the readers attention with. it is usually a question.
For the body paragraphs explain a point and give examples.
your final paragraph should conclude what you wrote, your not trying to prove anything just to sum up everything, re state your points and conclude with a catchy ending.
I hope this helps.
I believe the proper answer would be "Sentence 3".
The main idea of the passage above from Cotton Mather's "The Wonders of the Invisible World" is to justify the outcome of the trials. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Answer:
1. He has lived here FOR two years.
2. She has worked here SINCE 1949.
3. I have been waiting here SINCE three o'clock.
4. He has been living in New York SINCE 1929.