What is the prepositional phrase in this sentence, and what does it modify? the purpose of the last song was to show off all the musicians’ talents.
a. of the last song; an adjective phrase that modifies the noun purpose
b. to show off all the musicians’ talents; an adverb phrase that modifies the verb was
c. to show off; an adjective phrase that modifies the noun talents
d. off the musicians’ talents; an adverb phrase that modifies the verb show

answer: yes, ive read this book! now whats the problem ?

explanation:

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."