首页
›
答案
›
题库
›
慕课
›
未分类
The function of auxiliary “（）” is to help the main verb to form the perfective or the perfective progressive aspect.
The function of auxiliary “（）” is to help the main verb to form the perfective or the perfective progressive aspect.
正确答案：have
标签：
英语语法
上一条：
Main verbs can be divided into transitive verbs, （） verbs and linking verbs in accordance with whether or not they must be followed by obligatory elements
下一条：
Auxiliary “（）” is usually used to help the main verb to express negative meanings or to form questions, and sometimes to help express the emphatic affirmative.