Context: I sent one of my articles to a friend of mine a week ago and yesterday I resent it with some corrections. So, today I am talking to my friend on the phone and ask:
1 - Did you notice that I changed some passages in my article?
2 - Did you notice that I had changed some passages in my article?
Which tense is appropriate in this context?
I see them this way:
1a - Did you notice (when you were reading the article) that I changed some passages in my article?
2a - Did you notice (when you were reading the article) that I had changed some passages in my article?
Which makes 2 more logical. But I am not a native speaker.
What do you think on the matter of the question?