A preposition is a word which expresses relationship of a noun or a pronoun to other words of the sentence. e.g. 'in, of, to, at, by, for, with, under, above, into, onto, upon, about, behind, beside, before, after, towards, inside, outside, below, around' are commonly used examples of prepositions
It is the very first line from the poem “Silver” by Walter de la Mare that best illustrates alliteration, mostly because in this line the author uses a variety of syllables.
It would help a lot if you gave us the excerpt and which sentences the question is talking about.
Answer:
when I take blue pills I can smoke on da floor?
An appositive phrase gives you an alternative description or more information about a noun, and it is separated from other elements in the sentence by commas.
The appositive phrase in this sentence is "a whiz at foreign languages" - you can identify it because it is describing and giving you more information about Mr. Wilson (the proper noun the phrase is next to) and has commas around it.