Rewrite the sentences in the passive voice. Kate sent me an email yesterday.

Tina will buy the children two video games.

The teacher has explained the maths problems.

The manager is dictating a letter to her secretary right now.

She always reads the children a story at the end of the day

нужно.​

Children  enjoy   playing since the first humans walked on the earth  thousands of years ago.  playing  seems  to be an important way for children t o learn how to work together. it also helps  them  to find out how the world works. indeed, many scientists think that one of the  best  ways for children to learn a foreign language, for example, is to learn while  playing games. children play games and play with toys, but what  is  the differences between games and toys? firstly, toys  don't have/haven't  rules  or winners and losers most games do. secondly, a toy is always a physical thing that someone  has made. some games, like monopoly or football  need  physical equipment but others, like word games, do not. ivan iii vasilevich, who is also known as ivan the great, is an interesting  figure in russian history. ivan had great political skills and became a popular leader, uniting many princes in the surrounding area. ivan the great’s greatest achievement was to free russia from mongol control. in 1480, ivan made an important announcement, telling the mongols that he would no longer pay them the money they wanted. both sides came together to fight, and it was unclear which side was more powerful.  however, before the battle, the mongols retreated because of the strehgth of ivan’s army and the battle never happened. the mongols had, in effect, lost and from then on, russia was a free country.