black

这只猫是黑色的。

The cat is ___black.

我用黑笔在白板上写了今天的日程。

I wrote today's schedule on the whiteboard with a ___black marker.

我的新外套是黑色的，很耐脏。

My new coat is ___black and doesn't show dirt easily.

洞穴深处一片漆黑，什么都看不见。

Inside the cave, it was completely ___black and we couldn't see anything.