题目内容
【题目】Look! They (swim) in the lake.
【答案】are swimming
【解析】Look！是现在进行时的提示语，主语 they 是复数，故填 are swimming。句意是：看！他们正在湖里游泳。
练习册系列答案
相关题目
题目内容
【题目】Look! They (swim) in the lake.
【答案】are swimming
【解析】Look！是现在进行时的提示语，主语 they 是复数，故填 are swimming。句意是：看！他们正在湖里游泳。