Нужно в предложениях определить видовременные формы и функции глаголов - to be , to have. 1. khabarovsk has firm friendly bonds with many foreign countries. 2. the students have to know the history of their city. 3. the civil war was one of the most dramatic episodes in the history of the far east. 4. the foundation of the city is connected with the exploration of the amur river and the pacific ocean. 5. for its long history lenin sguare has seen and experienced much.

1. has
время - Present Simple, функция - смысловой глагол со значением «иметь», «обладать»;
2.  have to
время - Present Simple, функция - модальный глагол;
3. was
время - Past  Simple, функция - глагол-связка;
4. is connected
время - Present Simple Passive,  функция - вс глагол страдательного залога;
5. has seen
время - Present Perfect, функция - вс глагол для образования перфектного времени