作业帮before后加动词是吗形式?
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/05 13:31:46
before后加动词是吗形式?
efore后加动词是吗形式?
before可以用作【连词】和【介词】
用作【连词】时,后接【句子】.
用作【介词】时,后接【名词】或【动名词】.
如：Before he arrived, we had finished the work.(连词)
Before his arrival, we had finished the work.(介词)
Before going to bed, he had a cup of tea.(介词)
如果我的回答对你有所帮助,请点击本页面中的“选为满意回答”按钮,谢谢!
before可以用作【连词】和【介词】
用作【连词】时,后接【句子】.
用作【介词】时,后接【名词】或【动名词】.
如：Before he arrived, we had finished the work.(连词)
Before his arrival, we had finished the work.(介词)
Before going to bed, he had a cup of tea.(介词)
如果我的回答对你有所帮助,请点击本页面中的“选为满意回答”按钮,谢谢!