Directions: In the following passage, some words have been deleted. Select the most appropriate option to fill in each blank.

What are the future possibilities for space travel in the long term? ___(1)___ will humans go after they have explored our solar system? It is said that ‘Star Trek’ could hold the ___(2)___ to these questions. It is predicted that travel to other galaxies will only be ___(3)___ in huge ‘starships’. These will wander through space for hundreds or even thousands of years. Each of them will carry a large human ___(4)___. Some of those people will take over a suitable new planet and settle down there. This search for new planets to settle in will continue until life on planet Earth could be just a ___(5)___ memory.