Which sentence uses correct punctuation? “when i get to graduate school,” robyn said, “i plan to study every day.” “i’m afraid i don’t know which way to go, said marilyn, “so i’ll have to stop and ask for directions.” why does everyone look so tired? asked our science teacher.

"When I get to graduate school," Robyn said, "I plan to study every day."

Explanation:

In the second option, a closing quotation mark is missing after "way to go." In the third option, there are no quotation marks distinguishing narration from dialogue (they should be placed before Why and after the question mark). Only the first sentence makes correct use of quotation marks.

i will try let me see what they are first