In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Article: If you're training for a marathon, a proper plan for water intake is important. Of course, there's the risk of dehydration . But athletes now know they can also get into trouble by drinking too much. Too much water intake can lower levels of sodium in the blood. The death of a 28-year-old woman following the Boston Marathon caught the attention of many runners and led to new research. Experts advise long distance runners to replace the liquids they sweat out. Their goal is to try to keep someone from not getting dehydrated by more than 2 percent of their body weight. One technique for deciding how much water you need is to get the exact numbers. Runners have to weigh themselves before and after a run to determine how much water they've lost. If their weight drops by more than 2 percent, they have not drunk enough water. Hyponatremia occurs when runners drink so much water that blood salt levels drop off. A study published last year tested 488 runners who completed the Boston Marathon and found 13 percent of them had dangerously low blood salt levels. The first sign that runners may notice is slightly swelling in the hands. They can't get their rings off, and then they might feel sick. They may not remember where they are. In fact, most runners get enough salt to get back to normal levels by eating just one meal after a run. Contrary to the old advice that runners should drink as much as they can to prevent dehydration, the new research has shown that the body is a remarkable machine that actually tells you via thirst when you need water.
Answer: a 28-year-old woman who died after a Boston Marathon
The author of this passage is primarily concerned with _ .

Article: Typing Success in 20 Minutes a Day -- Teaching Your K-12 Students to Type in 20 Minutes a Day Typing is fast becoming an important skill in our world. Making this skill available to your students is very important. Just 20 minutes of the following activities per day will give your students the finger strength and keyboard knowledge they need to be ready to include typing in their learning programs. Step 1 Knitting : You can try various styles until you find the one that best suits your students' abilities. Finger knitting is a great way to start! It helps students focus on finger strength. Knitting with needles is a little more challenging but will suit some older students. The more practice the fingers get the stronger they will become. Step 2 Key board games: It helps your students become familiar with the keyboard. Students as young as four years old can practice finger placement, letter sounds and names using the keyboard of computers. Step 3 Clay modeling: Many children develop the ability to be quick and skilful with their hands through creating clay models. The creative nature of this activity keeps children engaged for long periods of time. It helps keep fingers strong and supple. Step 4 Lego building: Little fingers become strong when children pull apart little Lego time and time again. Because of the fun nature of this activity it helps build and does a lot to reinforce the ability to arrange things into an order -- another important aspect in typing. Choose an age-appropriate, interactive and engaging typing program. All students are different and with firm finger skills typing can be easily learned in 20 minutes a day with the use of a mixture of these different approaches.
Answer: Step1
All the following steps can make one's fingers stronger EXCEPT _ .

Article: Science has told us too much about the moon that it is fairly easy to imagine what it would be like to get there. It is certainly not a friendly place. Since there is no air or water, there can be no life of any kind. There is not much variety of scenery either. For mile after mile there are only flat plains of dust with mountains around them. Above, the sun and stars shine in the black sky. If you step out of the mountain shadow, it means moving from the severe cold into intense heat. These extreme temperatures break rocks away from the surface of the mountains. The moon is also a very silent world, for sound waves can only travel through air. But beyond the broken horizon, you see a friendly sight. Our earth is shining more brightly than the stars. From this distance, it looks like an immense blue, green and brown ball.
Answer: all of the above
The moon is an unfriendly place because _ .