Some years ago, whites ruled South Africa. Apartheid (种族隔离) was the 21 of the land. One day, two middle-aged blacks met in a “whites only” 22 . One of them had a permit to work in the area, 23 the other did not, which meant he could be put into prison for entering into the “whites only” zone. 24 they saw a policeman coming towards them, and 25 .
