请根据短文内容，回答题。

Racial Prejudice

In some countries where racial prejudice is acute, violence has been taken for granted as a means of solving differences, and this is not even questioned. There are countries __________ (1) the white man imposes his rule by brute (粗暴的) force, there are countries where the black man protests by. __________(2) fire to cities and by looting and pillaging ( 抢劫 ). Important people on both sides, who would appear to be reasonable men, get up and calmly argue in __________(3) of violence as if it were a legitimate (合法的) solution,__________ (4) any other. What is really frightening, what really __________(5) you with despair, is the realization that when it comes to the crunch (关键时刻) , we have made no actual__________ (6) at all. We may wear collars and ties instead of war-paint, but our instincts remain basically unchanged. The whole of the recorded__________(7) of the human race, that tedious documentation of violence, has taught us absolutely nothing. We have still not learnt that __________(8) never solves a problem but makes it more acute. The sheer horror, the blood and the suffering__________ (9) nothing. No solution ever comes to __________(10) the morning after when we dismally (阴郁地) contemplate the smoking ruins and wonder what hit us.
The truly reasonable men who__________ (11) where the solutions lie are finding it harder and harder to get a hearing. They are despised, mistrusted and even persecuted__________ (12) their own kind because they advocate such apparently outrageous things as law enforcement. If half the energy that goes into __________(13) acts were put to good use, if our efforts were directed at __________ (14) up the slums and ghettos (贫民窟) , improving living-standards and providing education and employment for all, we would not have gone a long way to __________(15) at a solution.
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