Which part of speech is the underlined word in the sentence?

well, was i ever surprised by her costume!

a.
interjection

b.
adverb

c.
conjunction

d.
preposition

The part of speech that has the underlined word in a sentence is…

The answer isn't A because it doesn't provide the emotion of the speaker. The answer is B because it has to do something with the expression with the relation of place, like "well." The answer isn't C because it doesn't involve things occurring at the same point in time and space. The answer is D because it shows the relationship between a noun and a pronoun, like "by." So the answers are B and D.