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5. Nowadays a certain limit should be set on the use of cars to reduce air (pollute) .

5. pollution

題目來源：全品作業本高中英語選修6新課標人教版 > Using Language

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Bezos' calculations may have been 10 ―but the reaction was not what he ex?pected. His grandmother burst into tears. His grandfather 11 the car off to the side of the road and asked young Jeff to 12 . And then his grandfather taught him a lesson: "My grandfather looked at me and after a bit of 13, he gently and calmly said, 'Jeff,one day you'll understand that it's harder to be 14 than clever. '”

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As I had my first child,I promised myself never to be a pushy par?ent. I was going to be a very 1 and understanding mother.

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