随着个人按揭贷款等金融业务的广泛开展，上海居民购房热情大为高涨，房产价格持续上升，房地产业对上海经济发展的推动作用日益明显。这说明[ ]

A、商品价格的变化受供求关系的影响

B、消费对生产具有推动作用

C、个人按揭贷款是中央银行的重要业务

D、房地产业属于第二产业

---Hi, Jane. Are you free at six this evening? I was wondering if you could come with me to see the movie “X-men”.

---I’m sorry but I________it already. Besides, I________my mother do the laundry.

A．had seen; would be helping

B．saw; will help

C．have seen; would help

D．have seen; will be helping