PLEASE HELP !!!!!!!!!!!!!!

Fill in the blanks in the following sentences with the appropriate definite and indefinite articles. The translations should help you decide which articles to use where.
1.__________Gare du Nord est______grande gare. The Gare du Nord is a big station.
2._____voyageurs achètent_____billets de train. The travelers buy train tickets.
3. Il y_____voiture-restaurant dans______train. There is a restaurant wagon in the train.
4._______tableau d'affichage est à côté du bar. The display is next to the bar.