An antecedent of a pronoun is a word that refers to the same thing as this pronoun.
here the pronoun is "theirs"
<em>Rivers stopped flowing along the bank's so that they could hear Orpheus, whose music was harmonious than </em><em>theirs.</em>
(all the words in Boldface refer to the same thing).
What does the "theirs" refer to? it refers to their music, and the they is the Rivers (it's a personification of rivers)
The antecedent is the river!
B I know because I red the book and the movie ITS SOOO GOOOOOOOOOOOD
It would be rectangle shap for news letter
To fix the sentence, change "," after 2004 to ";" and remove the "and" before scientists. It makes the sentence sound better.
I hope that helps!
Hospitals are a better career choice