what four and five?nine.A)are ,They are B)what four and five?nine.A)are ,They are B)is,lt is c)are,lt is

问题描述:

what four and five?nine.A)are ,They are B)
what four and five?nine.A)are ,They are B)is,lt is c)are,lt is

选B,问几加几通常使用单数is