Fill in the blanks with the words given below.(请在下方的横线上填写大写字母代码) A) far B) public C) environment D) harmful E) smoke F) health Cigarette Pollution Cigarette smoking is one kind of pollution. It is the most (1) ________ pollution in our lives and erous to our (2) ________. Smoking pollutes both the outdoor and the indoor (3)________. Outdoors, besides fouling the air, it makes the streets dirty, for some smokers throw cigarette (4)________ more polluted. When you enter a meeting-room, you’ll get a cough, because it is full of smoke and smells terrible. In a train, you’ll find yourself covered with (5) ________ if some smokers sit nearby. And you’ll be unlucky if you share a room in a dormitory with a roommate who is a heavy smoker. So, let us work together to make more (6) ________ places non-smoking areas.