系表结构+不定式,加动词ing形式,以及过去分词能分别举三个例子吗?

分类: 作业答案 • 2022-05-02 16:51:18

问题描述：

答

doing形式My job is selling books.
不定式My wish is to become a ×××
过去分词You are satisfied.You are satisfied. //系表结构在哪？