Vamos analisar as frases e as opções para preencher corretamente com o verbo "to be" na forma negativa. 1. David ___ a doctor. (David is not a doctor.) 2. We ___ good friends. (We are not good friends.) 3. The cat ___ hungry. (The cat is not hungry.) 4. Michael and Susan ___ at home. (Michael and Susan are not at home.) 5. Is Julia Robert French? No, she ___. (No, she is not.) 6. Are New York and Los Angeles Spanish Cities? No, they ___. (No, they are not.) 7. Is Mount Everest in Africa? No, it ___. (No, it is not.) 8. Is Big Ben in Paris? No, it ___. (No, it is not.) Agora, vamos verificar as opções: a. aren’t – aren’t – isn’t – aren’t – am not – aren’t – isn’t – isn’t b. aren’t – am not – aren’t – isn’t – isn’t – am not – aren’t – isn’t c. am not – isn’t – aren’t – am not – am not – aren’t – am not – aren’t d. isn’t – aren’t – isn’t – aren’t – isn’t – aren’t – isn’t – isn’t Analisando as opções, a que melhor se encaixa nas frases é a a: "aren’t – aren’t – isn’t – aren’t – am not – aren’t – isn’t – isn’t". Portanto, a resposta correta é a) aren’t – aren’t – isn’t – aren’t – am not – aren’t – isn’t – isn’t.