题目内容：
Passive smoking is workplace killer Pressure mounted on Britain on Monday to take action on______（1）smoking with new research showing second—hand smoke______（2）about one worker each week in the hospitality industry．Professor Konrad Jamrozik，of Imperial College in London，told a conference on environmental to-bacco that second—hand______（3）kills 49 employees in pubs，bars，restaurants and hotels each year and contributes to 700 deaths from lung cancer，heart______（4）and stroke across the total national work force．
“Exposure in the hospitality______（5）at work outweighs the consequences of exposure of living______（6）a smoker for those staff，”Jamrozik said in an interview．
Other______（7）have measured the levels of exposure to passive smoking but Jamrozik calculated how it would translate into avoidable deaths．
His findings are____（8）on the number of people working in the hospitality industry in Britain．their exposure to second．hand smoke and their——（9）of dying from it．
Jamrozik said me findings would apply to_____（10）countries in Europe because，to a greater or______（11）extent，levels of smoking in the community are similar．
Professor Carol Black，president of the Royal College of Physicians．who sponsored the meeting．said the research is proof of the need for a ban on smoking in______（12）places．
“Environmental tobacco smoke in pubs，bars，restaurants and other public places is _____（13）damaging to the health of employees as well as the general public．”she said in a statement．
“Making these places smoke．free not only protects vulnerable staff and the public。It will____（14）help over 300，000 people in Britain to stop smoking completely，”she added．Ireland recently became the first country to introduce a national ban on smoking in Public___（15）．New York and parts of Australia have taken similar measures． A．passive
B．natural
C．extensive
D．whole
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