Long TextExercise 10 of 74

After a bumpy 225km drive from a meagre airstrip in Tindouf, south western Algeria, a sprawling single-story town begins to emerge from the desert's dust. As the sun climbs in the cloudless sky, visitors are rewarded with their first glimpse of Dakhla refugee camp. It isn't the most obvious setting for a film…

• In the first paragraph, the writer emphasises:
• According to the writer, the refugees have been in the desert for so long because: