she wrote her own sentences ___(use) the grammar she was learning.用using还是used?为什么?

分类: 作业答案 • 2022-01-09 18:03:33

问题描述：

答

using
she wrote her own sentences （which are using） the grammar she was learning.
省略后就成了using,同时是主动形式.used是被动形式（过去分词的作用）,应该是人用.就不能像本题的选择一样表示修饰了.