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