To learn to speak English well, .
A. much practice is needed
B. one needs much practice
C. much practice is needed by one
D. one is needed much practice
网友回答
A. much practice is needed
(答案→)B. one needs much practice
C. much practice is needed by one
D. one is needed much practice
解析：考查非谓语动词。第一个分句表示目的，逻辑主语是人，排除A、C；one和need是主谓关系，用主动。故选B。