The children are students中students是什么成分

The children are students中students是什么成分 Some students are talking about:Should the children of migra The children there are my students（对there提问） What are the students The students are excited. Students in the class are mainly girls?这句话中mainly是什么用法? The students are from ________ The students are reading books The students are very happy____________________. Are the twe students brothers? Are the five kids students? The students are having class.