1) Excuse me, How could i get to the nearest metro station. 2) Could I get there by walking or I should take a bus?3) How much time I need to get to the student center from the train station?4) Go straight. On the second turn , turn left and then on the third turn left.5) It would take you not more than 15 minutes.6) Excuse me, is school number 12 on this street?7) Im afraid I cant help you. I don't know the way to the main library.