white

他的牙齿很白。

His teeth are very ___white.

她买了一条白色的围巾来搭配她的外套。

She bought a ___white scarf to match her coat.

新粉刷的墙比原来的颜色更白。

The newly painted wall is ___whiter than the original color.

在所有颜色中，我认为白色是最白的。

Of all the colours, I think ___white is the ___whitest.