Нужно turn from active into passive a famous architect designed these buildings. someone had stolen my wallet in the bus. i had done my morning exercises by 7 o'clock. several people injured the legs last week. we haven't delivered any papers. some people saw an ufo in the sky above london last month.
These buildings were designed by a famous architect
My wallet had been stolen in the bus.
My morning exercises had been done by 7 o'clock.
Several people's legs were injured last week.
Papers haven't been delivered by us yet.
An UFO in the sky above London was seen by some people last month.