这位市长因其在环境保护方面的进步政策而广受赞誉。

The mayor is widely praised for his ___progressive policies on environmental protection.

他的健康状况在逐渐改善。

His health is showing ___progressive improvement.

这种渐进性眼疾会导致视力逐渐恶化。

This ___progressive eye disease causes vision to gradually worsen.

他正在写作业，使用的是现在进行时态。

He is ___progressively doing his homework, using the present continuous tense.