问题
选择题
English for more than six years, he can speak and work very well with that businessman from England.
A．To have learned
B．To learn
C．Learning
D．Having learned
答案
答案：D
考查非谓语动词。learn和speak，work有先后关系，应该用完成时，learn的逻辑主语是he，是主谓关系，故用主动形式。故选D。