I came across this question in my exercise book:
Everyone thinks the show was great, _______?
(A) don't they
(B) wasn't it
I think the answer depends on what the speaker wants to confirm. We can't really tell without further context.
However, I also think wasn't it may be wrong, because if the speaker wants to confirm that the show was great, he/she should have said I think... instead of Everyone thinks...
What do you think?