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.
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.