Fill in the Blanks To be Verb in PresentOnline version Fill the blanks of the text choosing the correct form of the verb to be of the lista by Claudio Córdoba Mendoza 1 it's aren't is she's is I'm isn't are he's are seven years old . I have got one brother and one sister . They older ? he eight and ten . My mum a doctor . My dad a doctor , a teacher . We very happy because Saturday and we at school !