Tag questions

What's the correct tag question?

She doesn't like fish, ?

We don't watch much TV, ?

He won't be late, ?

They're not going to win, ?

I'm not sure what to do, ?

You've already eaten, ?

She's not feeling well, ?

We've met before, ?

They won the game, ?

You'll be there, ?

We can go now, ?

We'll be fine, ?

They shouldn't be late, ?

It wasn't your fault, ?

I should have studied harder, ?