Karin found some waste paper on the floorShe it and threw into the future. A put; up B pi

问题补充：

Karin found some waste paper on the floor．She it and threw into the future.

A put; up B picked up C turned; up D looked up

答案：

解析：短语辨析。put; up举起，张贴；picked up捡起，拿起； turned; up 出现，找到；looked up 向上看，查阅。句意：卡琳在地板上发现一些废纸。她把它捡起来扔进垃……。结合语境可知选B。