Question

In which sentence is the underlined phrase an adverb phrase?

The students in Mr. Bruns’s class planned a party for his retirement.
Mr. Bruns had been teaching for 35 years.
The students called several of Mr. Bruns’s former students.
The students gave Mr. Bruns a book of his favorite verses.

Answer 1

the CORRECT answer is, "Mr. Bruns had been teaching for 35 years"

the words in bold show "to what extent" making it an adverb phrase

Answer 2

The sentence that has an adverb phrase is: "The students in Mr. Bruns's class planned a party for his retirement." An adverb is a word that modifies a verb, adjective and adverb. An adverb phrase consists of the adverb and its complements or modifiers. In this sentence, the adverb phrase is "for his retirement". This is an adverb phrase that answers the question why, and modifies the verb "planned".