Lucy is on duty today.Look!She is c______ the blackboard 问:空白处应该填什么
问题描述:
Lucy is on duty today.Look!She is c______ the blackboard 问:空白处应该填什么
要正确率高,
答
Lucy is on duty today.Look!She is 【cleaning】 the blackboard
露西今天值周.瞧!他现在正在擦黑板.现在进行时.