T2 adverbs and adjectives

in the sentence: "she is very fast!" is the word "fast" an adjective or an adverb?

we use it to describe how something is/was being done

make a question using the adverb: slowly

make a sentence using an adverb.

we use it to describe people, objects, places, etc

make a sentence using an adjective.

make a negative sentence using an adjective

make a question using the adjective: interesting

make a negative sentence using an adverb

Is the word "beautifully" an adverb or an adjective?

Is the word "beautiful" an adverb or an adjective?

in the sentence: "I work fast because I want to go home." the word "fast" is an adjective or adverb?