Who ▁the paper in the world?Cai Lun▁.A invented；did B was invente_英语解答

Who ▁the paper in the world?Cai Lun▁.A invented；did B was invented；was C did invent；was

人气：220 ℃　时间：2020-03-29 20:49:36

解答

选A.
意思：谁发明了世界上的纸?蔡伦发明了（世界上的纸）.
did代invented,后省略了the paper in the world.