1.
A: I can't wait for the Rihanna concert.
B: Neither can I! It's going to be fantastic.
2.
A: I used to love that programme when I was a kid.
B: So did I, I thought it was great.
3.
A: I wish it wasn't raining.
B: So do I. I want to go for a walk!
4.
A: Where's Alex? I wish he was here.
B: So do I. Parties are always better with Alex!