напиши продолжение этих предложенийTom isn39;t a cook, heKate and Rose are

Tom isnt a cook, he is a doctor. Тут можно указать всякую иную профессию (a dentist, a vet, a farmer). 

Kate and Rose are not eleven, they are thirteen. Заместо eleven можно написать любой иной возраст. 

They arent by the lake, they are at the cinema (in the park, at the zoo).