Mr Black gave us on how to learn English well.A. an adviceB. many advicesC. some adviceD.

问题补充：

Mr Black gave us on how to learn English well.

A. an advice

B. many advices

C. some advice

D. some advices

答案：

A. an advice

B. many advices

(答案→)C. some advice

D. some advices

解析：advice“建议”，不可数，排除A、B和D。some既可修饰可数名词，也可修饰不可数名词。