Complete the following passage with words and phrases chosen from Unit Five Text B. The initial letter of each is given.AIDS is a terrible disease. It poses a (1) t_____ to all the human beings without caring whether you are black or white, male or female, gay or straight, young or old. But what is at risk now is not just the people (2) i_____ with the disease. Human civilization itself is being threatened. This is because the whole society tolerates both ignorance of and (3) p_____ against HIV or AIDS．Once diagnosed as HIV-positive，the victims are isolated or treated as outcasts. They are believed to have (4)c_____ something evil or to have entered some alien state of being. As a result, these poor people have to (5) s_____ the flickering candle of life from the cold wind of rejection by their family members. When they die of the disease, their families dare not whisper the word AIDS. They just (6) g_____ silently. Thus, our prejudice and silence have helped the disease (7) a_____. Now HIV marches firmly towards AIDS in more than a million American homes, littering its (8) p_____ with the bodies of the young. To guard against the disease effectively, we must take this issue seriously. People should be educated to (9) b_____ those negative attitudes to an end. We should not see AIDS as something evil and the patients as alien. Instead, we should concern ourselves with the prevention of the disease and render strong (10) s_____ to the patients with more compassion. Only in this way can we have a better chance of winning the war against AIDS.