举一个be going to的肯定句，变为否定句，一般疑问句，特殊疑问句，否定回答，肯定回答
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He is going to be a teacher in the future.
否：He isn't going to be a teacher in the future.
一：Is he going to be a teacher in the future?
肯定：Yes,he is.
否定：No，he isn't.
特：What is he going to be in the future?