没人知道他的陈述是事实还是虚构。

Nobody knows whether his statement is fact or ___fiction.

她所说的一切结果都是彻头彻尾的虚构。

Everything she had said turned out to be a complete ___fiction.

学校宣传的“按需个别辅导”结果只是虚构的。

The 'individual tuition on demand' advertised by the school turned out to be a ___fiction.