下列离子方程式中正确的是 [ ]

A．NaHSO₄溶液中加Ba(OH)₂溶液至中性：Ba²⁺+2OH^-+2H⁺+SO₄^2-=BaSO₄↓+2H₂O

B．NH₄HCO₃溶液与过量NaOH溶液反应：NH₄⁺+OH^－=NH₃↑+H₂O

C．高锰酸钾与乙醇制备Mn₃O₄纳米粉体，同时生成乙醛：6MnO₄^-＋13CH₃CH₂OH→2Mn₃O₄＋13CH₃CHO＋6OH^-＋10H₂O

D．AlCl₃溶液中滴加浓氨水至过量：Al³⁺ + 4NH₃·H₂O=AlO₂^- +4NH₄⁺ + 2H₂O

— Tom, could you go to the supermarket with me?

— I’d like to, but my homework ______ and I have to hand it in tomorrow.

A．wasn’t finished

B．won’t be finished

C．hasn’t been finished

D．hadn’t been finished