24. Since she was alone, she opened the door leaving the chain lock fastened A. warily B consciously C. audaciously D. recklessly 25. In the last few minutes the conversation has become seemingly as he discussion were of some minor domestic matter and not survival itself A. crucial B. central C. casua caus 26. I didn't listen to Mom and I was not surprised at the look of her face A. indifference B compliment C negligence D. reproach 27. The victims of drunken driving in America over the past decade incredible 250,000, with three killed every hour of every day on average take u B. add up to C. count for D. turn out to 28. He is believed to have been shot by a rival gang in for the shootings last week A. revenge B. reserve C. reverse D. remedial 29. These pollutants can be hundreds and even thousands of kilometers by large air masses A contained B conveyed C contaminated conserve 30. There are a few small things that I don't like about my job, but It's very enjoyable A all at once B. once and for all C so much as D. by and large