In which sentence does the underlined adverb modify another adverb

An adverb is a word that acts as a modified of verbs, adjectives or even other adverbs, indeed adverbs describe the frequency, degree, place, time, etc of verbs (actions) or adjectives (words that describe nouns). I also do not know the sentence you are talking about, but I hope I partly helped you in what you are looking for.

ich statement best shows a problem in travels with charley?

one sharp difficulty presented itself. in the intervening twenty-five years my name had become reasonably well known.

this being so, my trip demanded that i leave my name and my identity at home.

i had to go alone and i had to be self-contained, a kind of casual turtle carrying his house on his back.

with all this in mind i wrote to the head office of a great corporation which manufactures trucks.

onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.