某企业2013年3月份开采铝土矿石500吨，销售400吨。已知，铝土矿石适用的资源税单位税额为每吨14元。根据资源税法律制度的规定，该企业当月应缴纳资源税（）元。

A.2240

B.3360

C.5600

D.7000

Mary sits _________ the classroom and I sit _________ her.

A．in the front of, in the front of

B．in front of, in front of

C．in the front of, in front of

D．in front of, in the front of