According to this cartoon, the boy’s grade in Math is
NO, I can’t explain... Disponível em: <http://www.glasbergen.com/wpcontent/gallery/cartoons/toon_15.giff>. Acesso em: 2 dez. 2010.
NO, I can’t explain... Disponível em: <http://www.glasbergen.com/wpcontent/gallery/cartoons/toon_15.giff>. Acesso em: 2 dez. 2010.