根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，并将该项填写在答题卡指定的位置。选项中有两项为多余选项。
小题1: We’ve worked to make their streets and their schools safer, to give them something positive to do after school and before their parents get home. We’ve worked to teach our children that drugs are dangerous, illegal and wrong.
Today, I want to talk to you about the historic opportunity we now have to protect our nation’s children from an even more deadly threat. 小题2: Smoking kills more people every day than AIDS, alcohol, car accidents, murders, drugs and fires combined. Nearly 90% of those smokers lit their first cigarette before they turned 18. consider this: 3,000 children start to smoke every day illegally, and 1,000 of them will die sooner because of it. 小题3: For more than five years we’ve worked to stop our children from smoking before they begin to try, starting a nationwide campaign to educate them about the dangers of smoking to reduce their access to tobacco products, and to restrict tobacco companies from advertising to young people. 小题4: That means if we act now, we have it in our power to stop three million children from smoking and save a million lives as a result. So this is an emergency that needs quick action of all of you. 小题5: .
A．Since I took office, I’ve done much to protect our children from harm.
B．This is a national tragedy（悲剧）that every American should help to prevent.
C．The quicker action we take, the fewer teen smokers there will be.
D．We have to educate them about the dangers of smoking.E．It is smoking that is more terrible than drugs.
F．Compared with other diseases, drugs kill more people every day.
G．If we do these, we’ll cut teen smoking by almost half over the next five years.
请根据上述条件计算下列各题（保留两位小数）。