Put the verbs in brackets into the "to-infinitive form” or the "-ing form".

1. Paper was invented by the Chinese. 
2. Penicillin was discovered by Alexander Fleming.
3. Applicants were interviewed by them.
4. A lot of money was spent at the supermarket by us.
5. Lunch is served from 12.00 to 2.00 p.m by them.
6. The work will be finished at time by us.
7. Rubbish is collected every day by them.
8. My car will be repaired by them by Sunday.
9. This problem can be solved by us.
10. Our passports were taken by a tall woman in a uniform.
11. We were allowed to take some photographs.

1. A new law will be passed by the government.
2. Clothes are sold in this shop (by them).
3. She was woken up at seven o'clock by her mother.
4. We will be payed twice a month by them.
5. The invitations were sent a week ago by us.
6. The walls can be decorated with posters (by you).
7. The fire was put out very quickly by the fire-fighters.
8. Our plants are watered for us by our neighbour when we are away.
9. The problem should be discussed in more detail by you.
10. We will be given some instructions later.
Или Some instructions will be given to us later by him. 

Synchronised swimming is very popular in many countries of the world. More than a century ago it was known as water ballet, but since 2017 it has been called artistic swimming. The Russian team is one of the best teams in synchronised (artistic) swimming in the world. The Russian athletes won the gold medals at the 2016 Summer Olympics in Rio de Janeiro. Their names are Vlada Chigireva, Natalia Ishchenko, Svetlana Kolesnichenko, Aleksandra Patskevich, Svetlana Romashina, Alla Shishkina, Maria Shurochkina, Elena Prokofyeva and Gelena Topilina.
N. Ishchenko and S. Romashina also won the Olympic competition of duets in Brazil.
The coach of the Russian team is Tatyana Pokrovskaya.
But other countries also have strong teams and duets in synchronised (artistic) swimming. For example, the Chinese and Japanese athletes won the silver and bronze medals in Brazil. 
The Russian athletes were also winners at the 2017 World Aquatics Championships in Hungary. They won 8 medals (including 7 gold medals). The Chinese team won 5 medals (but only one of them was gold).