English for more than six years, he can speak and work very well with that businessman from England.
A．To have learnedB．To learnC．LearningD．Having learned
D
考查非謂語動(dòng)詞。learn和speak，work有先后關(guān)系，應(yīng)該用完成時(shí)，learn的邏輯主語是he，是主謂關(guān)系，故用主動(dòng)形式。故選D。
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