C Rewrite the sentences in the passive.
1. Some visitors can find the exhibition boring.
2. The museum displays dinosaur fossils.
3. A festival of authentic music will take place soon.
4. The unknown author wrote her favourite novel.
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ответ: 1 The boy called his friend yesterday at seven o'clock

            2 While she was talking on a phone her brother was having dinner

            3 She was packing a suitcase when taxi arrived

            4 He took the coat put it on and left the room

            5 What were children doing when you came home? - They were watching TV

            6 We were preparing for the party all day yesterday

             7 Who were you talking with when i met you yesterday? - i was talking with my friend

             8 He was listening to music while driving to the hotel

             9 What was she telling when we came? - She was telling about new projects

             10 What music they were they listening to the the news started ?

Объяснение: Ты учишся у Оли? На Сторажарах?

Did you like the film yesterday?  - Тебе понравился вчерашний фильм? Используем the, т. к. речь идет об определенном фильме, который говорящий/ие смотрел/и вчера.

Do you speak French language?  Ты говоришь по-французски? В данном случае артикль не требуется.

Do you know where the Volga River is?  Ты знаешь, где находится река Волга? Артикль the употребляется с названиями рек, морей и океанов (но не озер!)

This well-known scientist has written a book and has read lectures in many universities.  Этот известный ученый написал книгу (какую точно - не упоминается, артикль не ставим) и прочитал лекции во многих университетах.