Преобразуйте предложения из действительного залога в страдательный. large distances separate planets. primitive man made his tools mostly of stone and wood. modern transport and communication systems have brought the peoples of the world together. this will probably dissolve both, social and physical differences in time.
Planets are separated by long distances. Tools of a primitive man were mostly made of stone.
People of the World have been brought together by modern transport and communication systems. Both social and physical differences in time will be probably dissolved by this.