I'd like a chocolate.OK.这句话哪错了

问题描述:

I'd like a chocolate.OK.这句话哪错了

chocolate不可数.不能用a
正确的是I'd like some chocolate

应该是I'd like a piece of chocolate.吧?!
巧克力不能直接用"a"修饰,“a piece of”是指一块.