中文谷_____hisresearchpaper,ProfessorReaganexperiencedvarious...
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问题详情：
_____ his research paper, Professor Reagan experienced various hardships and loneliness for nearly half a year．
A．Accomplishing B．To accomplish
C．Accomplished D．Having accomplished
【回答】
B
知识点：非谓语动词
题型：选择题
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