1. I bought a little mask for my sister, Sue.

Question

2. I bought my sister, Sue, a litle mask.

3. I bought my sister, Sue a little mask.

(Which one is right #2 or #3? From #1 we can get #2 or #3, right? Do I have to put a comma after 'Sue'?)

Answer 1

#s 1 and 2 are correct. #3 would also be correct if the comma were removed or if there were a second comma after "Sue."