"since paula started attending culinary school last spring
she's become far more discerning in her restaurant choices," shawn observed.
add a comma or semicolon if needed. otherwise, submit the text without any additional punctuation. explain.

- Since Paula started attending culinary school last spring, she's become far more discerning in her resturant choices," Shawn observed.

-Explanation: A comma was added after the word 'spring' to avoid this sentence becoming a run-on sentence. The comma acts as a separator or a 'pause' between the numerous words in the sentence.

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."