A:give it u
B:give it i
C:give it out
D:give it away
清代史学家章学诚在《与汪龙庄书》一文中指出:“今日学者风气,征实太多,发挥太少,有如桑蚕食时(吃桑叶),而不能抽丝。拙撰《文史通义》,中问议论开辟,实有不得已而发挥,为千古史学辟其蓁芜(杂乱)。”可见其主张史学研究应该( )
— I saw Mr. Green at school this morning.
— No, it _____ him. He flew to Canada last week.