Teoria del mar de electrones

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|EXERCISE A |Complete these sentences. Each time use IN, AT, or ON with one of the phrases from the box. | |
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|the front row |New York |thewest coast |
|the third floor | the back of the class |the Swiss Alps|
|my way to work | the back of the envelope |the window |
|the right| the front page of the newspaper | |

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|The headquarters of the United Nations is ___________________________. |
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|In most countries people drive_____________________ ....
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