5What I want to ask is
that iswhether there is a possibility that the candidates will choose B. was/ would stay" because of the testmaker's mistake? The mistake does not change anything. No answer makes sense.
I myself think that "B" is impossible here because we can only use if type 2 if we rewrite the question like this : "If today _________ tomorrow,....". No, "If it was/were nice tomorrow, I would stay at home" is fine. Actually, "If it is nice tomorrow, I stay at home" is also possible, though not very likely. It's a bad test question.