句子中有was是什么時態(tài)

　　It was a Monday, so she was at home.

　　那是個星期一，所以她在家。

　　I was honest about what I was doing.

　　我對我所做的一切毫不隱瞞。

　　He was lying—or was he?

　　他在說謊，還是沒有說謊？