Many people do not smoke and do not like smoking. These nonsmokers are very _46_ about the bad effects on people’s health from smoking. They have helped _47_ laws to restrict smoking in public places. Nonsmokers believe that the smoke from other people can also hurt them. This is true. Scientists also believe that “second-hand smoke,” the smoke that nonsmokers breathe in from smokers, is very _48_. Because of this, many restaurants and offices in the United States and Canada limit the places where people can smoke. Many airlines and hotels do not _49_ smoking at all. Things are changing. People want to stay healthy and live better lives. It is not easy to quit smoking, but it is the smartest thing to do. If you quit smoking, your chance of getting lung cancer decreases within one year after you stop. After ten years, the chance is _50_ the same as for nonsmokers. It is possible to quit smoking. You can start leading a healthier and better life today if you make the decision to stop smoking now. Good luck!
【題組】46.
(A) happy
(B) brave
(C) concerned
(D) necessary
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