L.R.
The question's a bit fuzzy to me. Are you asking "Is it normal for him to repeat back my words in answer to a question, rather than saying yes or no as his answer?" That seems to be it.
Sounds totally normal and healthy to me. He's mimicking you which is exactly how kids learn to speak. You say, "Do you like this movie?" He replies, "I like this movie." He's having a good time showing you he knows what you said. If he says it broken up, as in "I like this. Movie." (as you typed it), why would that be any cause for concern? He got the words just fine. Don't stress over his inflection or what sounds to you like he put a period into the sentence. HE knows what he means and his meaning is clear to any adult who hears him.
I think it's actually better that he repeats your words rather than just offering a short yes or no to questions. Any kid can just say yes or no all day long and not have listened to a word you said. At least you know he actually heard and processed the words you said to him.
He sounds normal and bright. Talk to him a lot, all day, about everything everywhere you go, and read out loud to him constantly. All that helps a lot.