we have a new family joining us today,这里的join为什么要加ing?
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:英语作业 时间:2024/07/28 14:20:19
we have a new family joining us today,这里的join为什么要加ing?
![we have a new family joining us today,这里的join为什么要加ing?](/uploads/image/z/14928957-45-7.jpg?t=we+have+a+new+family+joining+us+today%2C%E8%BF%99%E9%87%8C%E7%9A%84join%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E5%8A%A0ing%3F)
这里joining us是现在分词短语作定语修饰family.如果join不加ing,则是一个动词,而原句中已经有have作谓语动词,一个简单句只能有一个谓语动词.
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