Which sentence uses the positive form of an adverb?

a.
grandma sweetly sang a song.

b.
we should talk more often.

c.
that's the latest i've slept in weeks.

d.
sarah learned guitar quicker than i did.

b. our party quickly made its way into the cave / but we failed to find our host [the cyclops] himself inside.

#1  sara was always tasked with selecting birthday presents for her friends and family because everyone admired her  impeccable taste. 

impeccable (adj): perfect, flawless

#2  they moved to the united states many years ago, but their  insular  attitudes made it difficult for them to socialize. 

insular (adj): isolated; separate

#3  the professor explained the  semantic  relationship between the two nouns used in the sentence. 

semantic (adj): related to words or the meanings of words 

happy to : )