Question

oranges are cheap now (negative)​

Answer 1

oranges are not cheapppppp now

Answer 2

Answer: Oranges are not expensive now.

Explanation:while transforming into negative from affirmative, you have to include word(s) like no/not/neither/nor/never. Also keep in mind that the sense of the question should be kept intact. Be cautious so that the meaning of the given sentence does not become opposite.