Travelling.

Millions of people all over the world spend their holidays ....             [walking, riding, travelling]. They travel to see other countries and continents, modern cities and the ruins of ancient towns, they travel to ....       [enjoy, go, spend]picturesque places, or just for a change of scene. It's always ....              [interesting, funny, lovely] to discover new things, different ways of life, to meet different people, to try different food, to listen to different musical rhythms.

Those who live in the country like to go to a big city and spend their time ....          [visiting, making, seeing]museums and art galleries, looking at shop windows and dining at exotic restaurants. City-dwellers usually like a quiet .....         [trip, holiday, voyage] by the sea or in the mountains, with nothing to do but walk and bathe and laze in the sun.

Later, perhaps years later, they will be reminded by the photos of the happy time they have had.

People travel .....    [in, by, on] train, by plane, by boat and by car.

All means of .....         [trip, travel, journey]have their advantages and disadvantages. And people choose one according to their plans and destinations.