she
she and her friends谓语用什么？
and her friends谓语用什么？
它的谓语动词按主语是复数用。
she and her friends是由并列连词and连接的并列主语，是复数，谓语动词要按主语为复数用的。例如
She and her friends are all Chinese(她和她的朋友们都是中国人). 句中的谓语动词就用了表示复数的系动词are.
tom with his parents主语是谁？
tom with his parents主语是tom。
此处with his parents是介词短语，作状语。英语中，如果名词或代词后面接with/ together with/ along with/ except ...时，属就远原则，即谓语动词在人称和数上要与前面的主语保持一致。例如：
Tom with his clasmates is going to plant trees this weekend. 这个周末汤姆和他的同学打算去植树。
together with是什么原则？
together with是副词短语,引导的是修饰语，谓语动词要跟着主语走，例如：
should get together with the union.资方应与工会在一起开个会。
2.Poverty and illiteracy go together with high birth rates.贫困、文盲与高出生率密切相关。
3.He fastened the papers together with a paper clip.他用回形针别好了文件。
together可以放在主语后吗？
都行，放主语前面也行，但常见于放句末例如，主语前，Together with him，i go to school 高级 together with him为非谓语 主语后，i，together with him，go to school 较高级 together with him为补语 句末，i go to school together with him 最低级，together with him为状语