To be: краткие отрицательные формы

Составь отрицательные предложения с краткими формами глагола to be.

{"questions":[{"content":"[[speech-3]] [[sentence-4]]","widgets":{"speech-3":{"type":"speech","text":"Я не девочка."},"sentence-4":{"type":"sentence","words":["I'm","not","a","girl."],"extra":["isn't"]}},"hints":["Девочка — «girl»."]},{"content":"[[speech-24]] [[sentence-29]]","widgets":{"speech-24":{"type":"speech","text":"Мне не четыре года."},"sentence-29":{"type":"sentence","words":["I'm","not","four","years","old."],"extra":["aren't"]}},"hints":["Четыре года — «four years old»."]},{"content":"[[speech-67]] [[sentence-76]]","widgets":{"speech-67":{"type":"speech","text":"Динозавры не низкие."},"sentence-76":{"type":"sentence","words":["Dinosaurs","aren't","short."],"extra":["I'm"]}}},{"content":"[[speech-114]] [[sentence-127]]","widgets":{"speech-114":{"type":"speech","text":"Торт неплохой."},"sentence-127":{"type":"sentence","words":["The","cake","isn't","bad."],"extra":["aren't"]}}},{"content":"[[speech-191]] [[sentence-208]]","widgets":{"speech-191":{"type":"speech","text":"Коробки небольшие."},"sentence-208":{"type":"sentence","words":["The","boxes","aren't","big."],"extra":["isn't"]}}},{"content":"[[speech-283]] [[sentence-304]]","widgets":{"speech-283":{"type":"speech","text":"Мыши не белые."},"sentence-304":{"type":"sentence","words":["The","mice","aren't","white."],"extra":["I'm"]}},"hints":["Мыши — «mice»."]},{"content":"[[speech-412]] [[sentence-437]]","widgets":{"speech-412":{"type":"speech","text":"Анна — не моя сестра."},"sentence-437":{"type":"sentence","words":["Anna","isn't","my","sister."],"extra":["aren't"]}}},{"content":"[[speech-711]] [[sentence-740]]","widgets":{"speech-711":{"type":"speech","text":"Кукла некрасивая."},"sentence-740":{"type":"sentence","words":["The","doll","isn't","nice."],"extra":["aren't"]}}}]}