1. the main point
2. feudalism
3. feudalism
Answer:
I
Explanation:
I, he, she, etc. are pronouns.
Answer:
In most contexts, they are interchangeable. The only difference that most native speakers can agree upon is that someone is more formal than somebody (just as anyone is more formal than anybody, and everyone is more formal than everybody).
Commas are used when two independent clauses are joined with coordinating conjunctions (For, And, Nor, But, Or, Yet, So).
Example: I wanted to play cricket, but I was not feeling well.
However, there are always exceptions to this.
Hope this helps:)
