这份报告的质量可以接受，但还有改进空间。

The quality of this report is ___acceptable, but there's room for improvement.

这样的行为在正式场合是不可接受的。

Such behavior is not ___acceptable in formal occasions.

在正式场合，这样的着装是不被接受的。

Such attire is not considered ___acceptable in formal settings.