问题
选择题
______ abroad for more than two years, he returned to his hometown.
A．Studied
B．Studying
C．Having studied
D．To study
答案
C
题目分析：句意：在国外学习了两年多后，他回到了家乡。这里需要非谓语动词做状语，因为是先出国学习，然后才回到家乡，所以用现在分词的完成式，选C。
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