题目内容：
回答问题：Everybody knows how to learn. Learning is a natural thing. It begins the 21 we are born. Our first teachers are our families. At home we learn to talk and to dress and feed ourselves. We
learn these and other skills by 22 .
Then we go to school. A teacher tells us 23 to learn and how to learn. Many teachers teach us, and we pass many exams Then people say we are educate& Are we really educated? Let's 24 the real meaning of learning. Knowing facts does not 25 being able to solve problems. Solving prob-lem requires creativity, not just a good 26 . Some people who don't know many 27 can also be good at solving problems.
Henry Ford is a good 28 . He left school at the age of 15. Later, when his company could not build cars 29 enough, he solved the problem. He thought of the assembly line. Today the answer seems simple. Yet, just think of the many university graduates who 30 solve any prob-lems.
What does a good teacher do? Does he 31 students facts to remember? Well， yes, we must sometimes remember facts. But a good teacher 32 how to find answers. He brings us to the stream of knowledge so we can think for ourselves. When we are 33 ,we know where to go.
True learning combines intake with output. We take information 34 our brains. Then we use it. Think of a computer; it stores a lot of information, but it can't think. It only obeys com-mands. A person who only remembers facts hasn't really learneD． Learning takes 35 only when a person can use what he knows.
A．month
B．minute
C．time
D．day
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