根据所给提示，完成句子。每空一词，含缩略词。
小题1:Who invented the car? （改为被动语态）
Who _________ the car invented __________ ?
小题2:He cut his finger by accident .（改为一般疑问句）
__________ he __________his finger by accident ?
小题3:The film started 20 minutes ago .（改为同义句）
The film has ______ ________ for 20 minutes .
小题4:我们的梦想总有一天会实现。（完成译句）
Our dreams will __________ __________ one day .
