1, Mary types letters in the office. *
⇒ The letters were typed in the office by Mary
2, Our friends send these postcards to us.
⇒ Them were received those postcards by their friends
3, Do they teach English here?
⇒ She asked me if they were teach English here
4, Where do people speak English?
⇒ He asked me Where people were speak English
5, Did the teacher give us homework?
⇒ He asked me If the teacher was give them homework
6, The boys broke the window
⇒ The window had broken by the boys
7,Where did you find your wallet?
⇒ She asked me Where I was find my wallet