Find the mistake: Verb to beVersión en línea Read de the following sentences. Find the mistake and correct it. por Oscar Camacho 1 He are a Teacher Written answer 2 It are cold today. Choose one or more answers a It is cold today. b It am cold today. 3 Were is from UKraine. Written answer 4 Ordena: years old am twenty-five I Written answer 5 Ordena: is an John Engineer. Written answer 6 Ordena: married? Are they Written answer 7 The book _______ mine Choose one or more answers a isn't b aren't 8 There ______ many people in this class. Choose one or more answers a aren't b isn't 9 Make the positive sentence negative: I am a student. Choose one or more answers a I'm not a student. b I'm isn't a student c I'm aren't a student 10 Make the positive sentence negative: This exercise is difficult. Choose one or more answers a This exercise isn't difficult. b This exercise are difficult. c This exercise aren't difficult.