记得每周打扫一次房间，保持整洁。

Remember to keep your room ___clean by cleaning it once a week.

她有一颗纯洁的心，总是为他人着想。

She has a ___clean heart and always thinks of others.

请把厨房的桌子擦干净。

Please ___clean the kitchen table.

老师希望我们保持试卷整洁且没有错误。

The teacher expects us to keep our test papers ___clean and free from mistakes.

警方随机检查后确认这位司机没有问题。

The police confirmed the driver was ___clean after a random check.