What did you do yesterday?
-I went to Bujeon Market.
-What a nice thing to do!
(What is the full form of 'What a nice thing to do!'? #1 or #2 or another?)
1. What a nice thing to do it was!
2. What a nice thing to do it is!
1 answer
'What a nice thing to do!' is complete by itself. Both 1 and 2 express the meaning, but are a little awkward.