求带讲解的主谓一致练习题是对题的讲解,不是讲语法 ,要是有时态语态的就更好了

每道题有提问,答案和讲解在最后面1.A day or two is enought....or...,谓语动词邻近原则,为什么还是is?不是are?2.Nine plus three ___ twelve.a.make b.makes 什么原则选b 3.Very few ___ his address in the town.a...