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