Kate has to finish her homework first,___she? [ ]
A.hasn't
B.has
C.doesn't
D.does
答案:C
市场需求与价格成反比关系。( )
滴不尽相思血泪抛红豆,开不完春柳春花满画楼,睡不稳纱窗风雨黄昏后”选自?