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
I would say 2 or 1
best wishes
First blank: “annoyed”
Second blank: “annoying”
if you need an explanation i can try to help with that. But i hope it helps!