首先被动语态的基本结构是sth be done,进行时被动是sth be being done,这样题目就很简单了,把是物的部分放到前面,因为东西是要被做;进行时被动是动作正在进行be doing,因为还是是被动所以变成 sth be being done 语...第三句中的 they are 跑哪去了？还有第四句我是这么改的 A study plan is been made by Wang linAn opening ceremony is held by them on the play ground.忘掉了A study plan is been made by Wang lin想法对的，就是你要求必须是现在进行时的被动，那就要改成A study plan is being made by Wang lin 。