请以谚语(proverb)"Nothing is difficult if you put your heart into it"为题，写一篇80词左右的短文。

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Children’s education is changing very fast today. In the past, teachers made children s_______(56) quietly for hours. They made them r_________(57) all kinds of things. The children had to go on r_________(58) things again and again until they knew them “by heart”. Today, many teachers wonder if it is p_______(59) to make children learn at all. They say you can o_________(60) help them learn. They say you must let children learn and discover things for t_________(61). But for some of the children, school is a kind of p___________(62) they can’t escape(逃亡) from. They are there only b________(63) their parents make them go. They get out of the classroom as soon as the teachers let them leave. Many of them want to find j________(64) but the law(法律) will not let them work until they reach a certain(一定的) age. And so, they have to stay in school. O__________(65) they do not learn anything at all and hate every moment.

45. 我们会照着老师说的做。

　 We will do _________________________.

44. 这块石头被当作标本带回实验室。

　 The rock was taken back to the lab ________________________.

43. 卖给你电脑的公司是可信的。

　 The company _____________________________ is credible.

42. 在NBA 打球的姚明是中国最有名的篮球运动员。

　 Yao Ming _________________________ is the most famous basketball player in China.

41. 那些名人拥有过的东西常能卖出很多钱。

　 Things _____________________________________________ are often sold for a lot of money.

40.(　　 ) Do you know the equation E = mc² , _______ is a great achievement in physics.

　　　　 A. which　　 B. that　　 C. in which　　　 D. what