Traduire en français une phrase avec un tag de conformité, de surprise ou de contrasteTraduction

Quelle est la traduction française de chacune des phrases ou dialogues suivants ?

We didn't know the answer. Neither did Paul.

- They got married last month.
- Did they?

They won't come to the party. Neither will James.

He plays the piano very well. So does his sister.

- We have never been to Canada.
- Haven't you?