I. Complete the third conditional sentences: ( завершити речення з умовно підрядним реченням третього типу)
1.If Joan ( open) the invitation, she ( know) about the fancy dress ball.---
2. If he (feel) better that evening, he ( finish) his homework.---
3. We ( arrive) on time if we ( not oversleep) .---
4. If you ( go) to the theatre, you (see) an amazing play.---
5. They ( meet) Michael if they ( not go) to the park that day.---

        Last summer I was writing a letter to my grandparents living a nearby village. Being aware of their desire to hear from us as often as possible it was a right decision of mine to write them a letter today, because I knew it would be delivered by  tomorrow morning by the time they will be drinking tea. 
        "Have you finished the letter yet ?", -my younger brother rushed into the room, his eyes worried and I could read a kind of envy on his face he experienced on my writing a letter. "O, you still have been writing it", - he settled down and went to me closer. "I do hope you mentioned me in your letter, especially you had to describe my success at math this month".
           "I had written about you before you ran into the room as if you had been chased by a couple of tigers",- I answered and returned to my letter. "I hope they will have got it by tomorrow",- he went to the window and looked out. "And don`t forget to mention that it has been raining cats and dogs all the day long".
          "I will write about the weather, though you know they have the similar weather conditions in the village, because they live close to our hometown", - I added a sentence and got up. Then I asked him, - if he wanted to join me on my  way to the post office, he agreed, and we left. The letter must be sent right now, he knew it so it took us only half an hour to get there and pay postage.

A museum (from the Greek μουσεῖον - House of the Muses) is an institution that collects, studies, stores and displays objects - monuments of natural history, material and spiritual culture, as well as educational and popularization activities.

At first, this concept denoted a collection of objects (exhibits) in art and science, then, since the 18th century, it also includes the building where the exhibits are located. Scientific research work carried out in museums has joined since the 19th century. And since the sixties of the XX century, the pedagogical activity of museums began (special projects for children, adolescents and adults).

With the development of computer technology and the Internet, virtual museums have also appeared on CD-ROM or on the Internet.

In 1946 the international organization ICOM (International Council of Museums) was created to support and develop the activities of museums. This organization includes over 27,500 members from 115 countries of the world and works closely with UNESCO and other international organizations.