问题
选择题
To learn to swim well, ___________.
A．one needs much practice
B．much practice is needed
C．much practice needs
D．one is needed much practice
答案
答案：A
本题考查非谓语动词。非谓语（不定式）作状语时，其逻辑主语一般应与句子主语一致。不定式to learn的逻辑主语应该是人。D项被动用法错误。