回答：这三个短语都是“帮助某人做某事”，意思相同；其中help sb to do sth,help sb do sth都是用动词不定式作宾语的补语，help后可以接带to的动词不定式，也可以接不带to的动词不定式，所以这两个是一样的；help sb with 后接名词。如：The daughter often helps her mother (to) do housework.The daughter often helps her mother with housework. 欢迎提问，乐意解答；愿你满意, 望你采纳。...
