____abroadfortwoyears,thetwoastro

发布时间：2020-07-11 19:46:15

____ abroad for two years, the two astronauts went back home last year.













A.Educating












B.Educated











C.Having been educated











D.being educated

网友回答

C解析考查非谓语动词。句中逻辑主语the two astronauts与educate为被动关系，根据for two years，可知用完成时，选C。
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