问题补充:
Could you please give me on how to improve my English?
A. a piece of advice
B. some piece of advice
C. some advice
D. an advice
答案:
(答案→)A. a piece of advice
B. some piece of advice
C. some advice
D. an advice
解析:advice 为不可数名词,一则消息,为a piece of advice,一些消息为some pieces of advice,故选答案为A