七、将来时态的被动语态
承受者+{be going to/will/shall/be to}have been done by+执行者
E.g. 主动:We‘ ll have finished the book by the end of September.
被动: The book will/shall have been finished by the end of September
Note: by the end of 短语的用法
(1) Will have done by the end of +将来时态
(2) Had done by the end of +过去完成时态
E.g. The project had been made by the end of last week.