Выпишите из следующих предложений модальные глаголы или их эквиваленты.

1. We can see the works by Russian artists of the XIXth century if we are in The Moscow Kremlin.
2. I must send a postcard with The Saint Basil's Cathedral to my friend.
3. Red Square may be called the heart of Moscow.
4. The catalogues are to be bought in the museum's ticket office.
5. You have to cross the street and you will see the National library.
6 Visitors are not allowed to take photos of the pictures in the exhibition halls.