Subject pronouns I think, I could be wrong tho
<span>b. blacks in america have always been free. Your welcome</span>
Participles have two forms - they either look like verbs + ing, or like past form of a verb (adding -ed to regular verbs, or third column of irregular verbs). They often function as either adjectives or adverbs in a sentence. So, having that in mind, the only participle in this sentence is the word excited, and it modifies the noun friend.
The friend was excited, which is why the latter word modifies the former.
A soliloquy is when <em>one person speaks their own thoughts out loud when he/she is by herself</em>.
hope this helps
Either add the passage with the question so we know what you are referring to or do not post questions like these. Not everybody has read what you have. This question is completely useless and unanswerable without the story to go off of.