He speaks good Chinese.。
He's good at speaking Chinese.。
His Chinese is very good.。
he chinese said is very good,like to eat china dishes his good friend to him.。
He speaks both English and Chinese well.。
I think his Chinese is very good. 。
不管是是说他说的好还是写的好,这句话都没有问题,而且符合7年级的水平。
your Chinese is very good.就可以了简单明了。