martes, 7 de marzo de 2017

What do you know about energy?


4 comentarios:

  1. What videos so interesting of energy.I did not know that enithing needed that to do something.

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  2. Estos videos son muy interesantes, y encima podemos escucharlos en ingles, así mejor porque así aprendemos ingles.

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  3. I like this videos because they are so nice and they explain very good the tipes of energy.

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