In which sentence is the agreement between the pronoun and antecedent correct? to become an architect, cassie knows that you must complete many years of education and training. one of the girls in my class wants to get their college degree in architecture from that university. each of the architecture colleges requires its students to complete a five-year program for a bachelor’s degree.

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."

the original because it was the first to be created which means it is most likely to be tried the hardest. meaning the actors tried their hardest to make it right because shakespeare was so famous.

hope this : )