In which sentence is the word my used as an INTERJECTION? A. -My-. letter to the editor was published today.
B. I expressed -my- ideas about the new freeway
C. I could not believe -my- eyes
D. My, there were a lot of letters on the subject!

D

Explanation:

D. My, there were a lot of letters on the subject!

-the word "My" shows a reaction to seeing a lot of letters on the subject so is an interjection

A. -My-. letter to the editor was published today.

B. I expressed -my- ideas about the new freeway

C. I could not believe -my- eyes

-for A,B,C this "my" shows possession my letter, my ideas, my eyes

can you finish the question hun