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: They sit by the door waiting for me. And while I may speak more about the narrowness of my very limited life than their real worth, just the fact that they're sitting there, waiting for me, makes me happy. I speak, of course, of my wonderful, brilliant, intelligently designed, calf-high rubber boots. They are a piece of industrial genius . They are real and vibrant , and make my life more worth living. My rubber boots are real and they do not fail me. I slip them on over my socks at a moment's notice. They go on easily. My feet feel joyful like the wagging tail of a dog waiting for its walk. My feet know they are safe. I step outside the house and nothing can stop me--the late season snowstorm, the pool of standing water at the bottom of my doorsteps that will never give off, the mud and dirt this season brings. My feet are warm and dry and happy. And so am I. My boots are modest. They make no promise they can't keep. I found them at one-third the price of the long boots I looked at longingly for years. Mine are American-made and inexpensive and unattractive and brown and solid. They are now three years old and still look new. I know I will have them forever. I will die with them on. They are homely and they are wonderful. My rubber boots make me braver and kinder and more generous. Yes, I will get the mail. Yes, I will get the newspaper. Yes, I will walk the dog. Yes to the garbage. Yes. Yes. Yes. I have rubber boots, good strong rubber boots--and I am not afraid.
Answer: it must be very cold in winter where the writer lives
We can infer from the passage that _ .

Article: Games are a good form of teaching or training children as they combine fun with knowledge. They make the teaching or training activities more interesting. They are useful in all fields of teaching and training. Help your child discover just how much more is going on in the world around them with this listening game. It will also provide a few minutes of peace and quiet in what is probably a very noisy and busy day. A discussion of the sounds you each hear will also assist in language development and an ability to articulate that which was heard. The sit-and-listen game is especially helpful if your child is at the stage of developing language skills: listening, speaking and so on. Method: This is a very relaxing activity in which you both need to sit still and silent for about 30 seconds and just listen to the world around you. You are both trying to hear as many different things as you can, whether they are cars, people, airplanes, water running, the wind in the trees or any other kinds of daily sounds. After the given time is up, having a chat about what you both could hear. It is a good idea to ask your little one some open ended questions to promote their language development, such as: "What were the loudest sounds you heard?" "What were the closest sounds you heard?" "How many cars did you hear?" "How far away do you think that barking dog might live?" "What sounds did you hear which you did not expect to hear?" Note: As an extension activity you may wish to draw a picture of all the things you could hear.
Answer: your child's language ability
The sit-and-listen game is intended to develop _ .

Article: Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy. Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory. Do you know what a 'territory' is? A territory is an area that an animal, usually the male, claims as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger enter your territory and threaten you, you may shout. Probably this is enough to frighten him away. If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird's song, and it is usually enough to keep an outsider away. Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs. You can see that birds have a language of their own. Most of it has something to do with attracting mates and setting up territories.
Answer: a way of warning
Some scientists believe that most of the time bird's singing is actually _ .