1. If we go to Kazan by train,we'll arrive at eight o'clock.
2. If we go to Sochi by plane,we'll arrive at nine thirty o'clock.
3. If we go to St. Petersburg by car,we'll arrive at six o'clock.
4. If we go to Kazan by bus,we'll arrive at six o'clock.
5. If we go to Sochi by plane,we'll arrive at nine fifty o'clock.
Вроде так)