"Are there any <plural noun>" vs. "is there any <singular noun>"
My question is on whether you should use nice cards or a nice card. All these sentences are written on the assumption that he sends one card to each of his friends at each event. (It is quite normal, isn’t it?) They say it should be cards, with  and .
- He always sends me nice cards.
- He always sends me nice cards at Christmas.
- He always sends each of his friends a nice card/ nice cards.
- He always sends each of his friends a nice card at Christmas.
Do the last two sentences still have to use cards?