If you keep English you can learn English well.A. practising speakB. practising speaking

问题补充：

If you keep English, you can learn English well.

A. practising speak

B. practising speaking

C. practising to speak

D. to practise spoken

答案：

A. practising speak

(答案→)B. practising speaking

C. practising to speak

D. to practise spoken

解析： 略