The pen is white.改一般疑问句.肯定否定回答.加中文.The pencils are black.改一般

Is the pen white?这只钢笔是白色的吗?Yes,it is。是的,它是。No,it isn't。不,它不是。Are the pencils black?这些铅笔是黑色的吗?Yes,they are。是的,它们是。No,they aren't。不,它们不是。