Fill in the Blanks Verb To beOnline version Praticando Interrogativa e negativa. by romilson gomes 1 Is friend I Mary doctor dogs not Are Is my my your curtain is they black intelligent best red doctor Those father not not am a a are very 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 . ?