问题描述： 改为被动语态 A Piano concert ___ (give) here last Friday. 1个回答 分类：英语 2014-11-05 问题解答： 我来补答 was given 一场音乐会上个星期五在这里举行.先确定时态,在be后加所需动词的过去分词形式!例句主动：The children gave the foreign guests a warm welcome.被动：The foreign guests were given a warm welcome by the children 展开全文阅读
