The setting did not checked by you before opening your new e-dictiaoary.
方法就是找到原文中的宾语,这句子中就是settings了,被动的意思就是将宾语前置,形式为宾语+ be动词+ 一般动词的过去完成时+ 主语
单数和不可数名词用am/is/was 其中现在时用am/is过去时用was
复数现在时用are,过去时用were
如
I take the book.------The book is taken by me.
The news surprised me.-----I was surprised by the news.
补充问题中,用was和is 都可以