下列化学反应，不属于氧化还原反应的是

A．2Al+Fe₂O₃ 2Fe+Al₂O₃

B．Fe₂O₃+3CO 2Fe+3CO₂

C．3Fe＋2O₂Fe₃O₄

D．CaCO₃CaO + CO₂ ↑

Where _____ live before you came here?[ ]

A. did you used to

B. did you use to

C. use he to

D. he used to