The pencil-box_____(hide)behind the door belongs to her.这里是不是填hidden呀?

问题描述:

The pencil-box_____(hide)behind the door belongs to her.这里是不是填hidden呀?
那The treasure box______(hide)somewhere in the hole a century ago.这一题呢?

hidden 过去分词做后置定语,被藏起来的;
was hidden,这里缺谓语