The answer is: "un" .
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</span>"Un <span>bolígrafo" .
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Yo- entro
Nosotros- entramos
Tu- entras
Vosotros- entran
El- entra
Uds.- entran
The artistic movement Pablo Picasso and George Braque co-found was Cubism. they developed it in the 1900's. This movement might reflect the idea of copying nature. What is more, the subject matter is broken up to create a new and different perspective. This can be divided into two areas: Analytic and Synthetic Cubism