In the sentence "He speaks English fluently," which word is the adverb?

Choose the adverb that correctly modifies the adverb in the sentence: "She speaks English __________ fluently than her brother."

The bold word is a verb. Which adverb describes it?

What is the adverb in the sentence: "He solved the problem effortlessly."

what is the use of an adverb

For each of the following sentences, identify the adverb(s).1. Delfino did very well on his algebra test yesterday.  A)  very  B)  well  C)  very, well  D)  very, well, yesterday