What are the adverb(s) in the following sentence

The teacher seemed unusually cheerful.

Is it unusually and cheerful?

5 answers

Unusually is an adverb modifying the adjective cheerful.

There's only one adverb in that sentence.
How about this one?

The summer rain fell extremely heavily.

Are extremely and heavily both adverbs that describe fell?
Yes. They are both adverbs modifying fell.
Last one.

The story ended very happily.

Adverbs very and happily or only
Very?
Both very and happily are adverbs.

Very modifies happily.

Happily modifies ended.