demand ,require ,request用法辨析（后面动词或名词从句如何连接）

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/10 14:01:45

只讲解这三个单词做动词的用法如下：
1.require
1）require sth (of sb)
2）require sb to do sth
3）require doing 主动表被动
4）require that-clause〔虚拟语气：(should)+V原〕
2.demand
1）demand sth of/from sb
2）demand to do sth；demand to be done
3）demand that-clause〔虚拟语气：(should)+V原〕
3.request
1）request sth of/from sb
2）request sb to do sth
3）request that-clause〔虚拟语气：(should)+V原〕

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