1 . 他被认为是最努力学习的学生。
He is________ ________ the most hard-working student in class.
He is
您最近一年使用:0次
名校
2 . Many children ________________ (留下) in the countryside when their parents flood into the big cities for jobs. (根据汉语意思填空)
您最近一年使用:0次