the children went door to door begging for food请帮我分析下句子成份,the children是主语,went是谓语,那么door to door呢?begging for food呢?分别作什么成分啊?

where do the children meet? What do the children do at Halloween? the children went back to school by bus(同义句) THE CHILDREN WENT SWIMMING LAST SUNDY 改为否定句 theatre,I,last,saturday,the,children's,went,to组词成句 填空;Two days l___we went to the Children'Palace. 填空是1 the children went to.......六个词 What do the three children like? Where Do The Children Play?歌词 The children always do homework at night Where do the children have lunch? what does the children do哪里不对 How many balls do the children play? How man balls do the children play? it's time the children went to bed 为何要用went呢? What the children (do) this afternoon?They (sing).What the children (do) this afternoon?They (sing). What do the children often do after school? what do people and children do in the festival是什么意思