A preface to the first edition of "..." being unnecessary,I gave none...这个句子的主语是?为什么?

分类: 作业答案 • 2022-03-30 14:57:17

问题描述：

答

主句是I gave none,所以主语是I,前面的A preface to the first edition of "..." being unnecessary是一个独立主格结构.