问题
选择题
Upon ________ his studies, he started travelling in China.
A．finish
B．finishing
C．he finished
D．finished
答案
答案：B
题目分析：考查动名词：句意：一完成他的学业，他就开始在中国旅行了。Upon是介词，后面接动名词，upon doing“一…就”，选B。
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