This is the only articles of these that _____written by him A.was B.were c.is D.are
问题描述：
This is the only articles of these that _____written by him A.was B.were c.is D.are
怎么选
那时态呢？请注意时态啊
答
选 a
the only 修饰着 所以用单数
指 所有中的唯一一个 是由他撰写的