请高手把下面的句子用现在完成时被动语态写出来？

看一个简单的例子：
Supper is ready! 晚饭做好了！
以此类推，应当是
Have all the materials been ready?
Has all the material been ready?

顺便说昌蔽局一下，material作“物料”讲可以耐让是复数名并圆词，也可以是不可数名词，复数形式更为常见。

二运银选一的话，这个好Have all material been ready?

现在完成时提问多采用have 前置
正常语序是 All material have been ready.
疑问句就是 Have all material been ready?
不是被做悄陪动。

被纯蠢动的表达是
Have all material been put in place?

be put 被动

这里森差不需野春告要用被动颂明
have all material been ready?
如果用被动
have all material been prepared ready?

第二个是对的
你可以这样看 陈述句是all materials(material可做可数也可做不可数，这里用复数更好） have been ready。所以改成简链疑问句旦纤就是
have all materials been ready？
希模咐仿望对lz有帮助。