Question

Which words in the sentence are the adverb phrase?

That old lighthouse has warned sailors for many decades.



A.


That old lighthouse


B.
for many decades


C.
has warned sailors


D.
has warned

Answer 1

Any ideas ?

Answer 2

B or A

Answer 3

It's not A...doesn't sound like an Adverb phrase.

I agree with you on B though.

Answer 4

^