What ________ four and five?______ nine.A.are,They are B.is,It’s C.is,Its D.are,It’s
问题描述:
What ________ four and five?______ nine.A.are,They are B.is,It’s C.is,Its D.are,It’s
请选择
答
B 把数词当成一个整体来看,因此用单数的形式.