你好,为你解答,正确答案为：
It doesn't matter whether he likes it or not.
解析：whether he likes it or not 主语从句,在 it doesn't matter +how , wheather +从句的结构中,主语从句（whether he likes it or not ) 不可以提前.
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不明白请及时追问,满意敬请采纳,O(∩_∩)O谢谢