There______a pen and some pencils in my pencil-box.A.is B.are C.be详细理由
问题描述：
There______a pen and some pencils in my pencil-box.A.is B.are C.be详细理由
答
答案选A
is
there be中be动词的单复数情况是看就进原则的,最近的是a pen
所以用is