Question: Write a multi-choice question for the following article, with the given choices and answer: Article: He must have been completely lost in something he was reading because I had to tap on the windshield to get his attention."Is your cab available ?"I asked when he finally looked up at me.He nodded,then said apologetically as I settled into the back seat,"I'm sorry,but I was reading a letter."He sounded as if he had a cold."I am not in a hurry,"I told him."Go ahead and finish your letter."He shook his head."I've read it several times already.I guess I almost know it by heart." "Letters from home always mean a lot" I said. "This isn't family," he replied."although it might just as well have been family.Old Ed was my oldest friend.In fact,we used to call each other 'Old Friend'--when we'd meet.I'm not much good at writing." "I don't think any of us keep up our correspondence too well,"I said."I know I don't,but I take it he's someone you've known quite a while?" "All my life.We were kids together, went to school together and all the way through high school.""There are not too many people who've had such a long friendship,"I said."Actually,"the driver went on,"I hadn't seen him more than once or twice year over the past 25 or 30 years because I moved away from the old neighborhood and you kind of lose touch even though you never forget." "You said 'was'.Does that mean---?" he nodded."A couple of weeks ago." "I'm sorry" He didn't say anything more,and we rode on in silence for a few minutes.But I realized that Old Ed was still on his mind when he spoke again,almost more to himself than to me." "I should have kept in touch with him." "Well,'' I agreed,"we should all keep in touch with old friends more than we do.But things come up and we just don't seem to find the time." When I got to my hotel room I didn't unpack right away.First I had to write a letter --and mail it. Options: A He has the habit of writing letters* B He doesn't want to make the same mistake as the driver. C His family asked him to do so. D He misses his friends very much. Answer: B He doesn't want to make the same mistake as the driver. Question:
Answer: Why did the writer write a letter and mail it right away when he got to the hotel room?

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: The Original London Sightseeing Tour-Hop On Hop Off "When a man is tired of London, he is tired of life, for there is in London all that life can afford. ----Dr Samuel Johnson 1709-1784." Duration: 24 hours pass Welcome to London and welcome to The Original Tour. Providing more than just a great way to travel around the capital, founded nearly 60 years ago at the time of The Festival of Britain, The Original Tour is now the largest and most popular sightseeing operator in the world. The Original Tour has become set up as the basic introduction to London. You are invited to experience all the magical sights and sounds of London in a comfortable and safe environment. There is a full commentary in English and a choice of six other languages on selected routes. Live English speaking guides appear on the yellow route service. Your tour tickets are completely unrestricted . Each route makes frequent stops-simply hop off where want to and return to the same stop to continue your tour. You can relax and enjoy the tour while your children (and everyone else's) are entertained and informed by the highly praised "Kids' Club" commentary and their free London activity packs. "Kids' Club" is featured on the red route service. Your ticket includes a free Thames River cruise .You can choose between a 24 hour river cruise hopper pass OR the 50-minute circular tour depending on the time you have available. Options: A a tourist guides organization B a bus tour company C a travel magazine D a public transport system Answer: B a bus tour company Question:
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[A]: The Original London Sightseeing Tour is_.

input: Please answer the following: Write a multi-choice question for the following article, with the given choices and answer: Article: Why Are Pig Farmers Still Using Growth-Promoting Drugs? It's one of the most controversial practices in agriculture: feeding small amounts of antibiotics to animals in order to make them grow faster. But what if the drugs don't even work very well? There's some good evidence that they don't, at least in pigs. They used to deliver a boost in growth, but that effect has disappeared in recent years or declined greatly. The reason for this is interesting and even paradoxical. Researchers think the antibiotics used to work by suppressing low-grade infections. In recent years, however, pork producers found other ways to accomplish the same thing through improved hygiene . As a result, the drugs have become largely superfluous -- yet many farmers still use them. To understand how this happened, you have to step back in time, says Steve Dritz, a specialist in pig nutrition at Kansas State University. Sixty years ago, when antibiotics were new, "people started treating animals, and feeding [the antibiotics], and finding that they had increased growth rates and feed efficiencies," he says. Nursery-age pigs, for instance, grew 12 to 15 percent faster with antibiotics. The animals also needed less feed to reach full weight. Other studies showed similar results in chickens and cattle. In the 1980s, a new set of studies found similar effects. So the growth-promoting effects of antibiotics became standard practice among meat producers. Fast forward to the 1990s. Dritz was starting his career as a scientist at Kansas State University, and pork production was changing dramatically. Previously, pigs were born and raised in one barn or in several barns close together. This meant infections could easily pass from one generation to the next, the way that kids share germs between their friends on the playground and their parents at home. Under the new system, when piglets are weaned, they move to a whole different place. That new site is carefully scrubbed and free of disease. Craig Rowles, who runs a large swine operation in... Options: A helped animals grow faster B decreased the death rate of animals C helped animals have a better appetite D increased animal reproduction Answer: A helped animals grow faster Question:
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output:
One of the advantages of using antibiotics in the past is that it _ .