Fill in the Blanks Verb To beOnline version Praticando Interrogativa e negativa. by romilson gomes 1 Is best father are curtain intelligent my doctor my very a friend black not a Is red your not am dogs Are I doctor is they not Mary Those 1 ) Passe as frases abaixo para forma negativa . a ) Mary is a doctor . . b ) I am your best friend . . c ) Those dogs are black . . 2 ) Passe para interrogativa . a ) My father is a doctor . ? b ) My curtain is red . ? c ) They are very intelligent . ?