help sb to do sth=help sb do sth=help sb with sth
固定结构,帮某人做某事
所以这个句子改成,
Mike has to help his mother do the washing every Sunday
Mike has to help his mother to do the washing every Sunday
都是对的
help sb to do sth=help sb do sth=help sb with sth
固定结构,帮某人做某事
所以这个句子改成,
Mike has to help his mother do the washing every Sunday
Mike has to help his mother to do the washing every Sunday
都是对的