on May Day, the Shanghai Expo has attracted tens of thousands of visitors around the worl

发布时间：2020-08-16 10:44:47


     on May Day, the Shanghai Expo has attracted tens of thousands of visitors around the world every day．
A. Having opened
B. Opened
C. Opening
D. To open

网友回答

A. Having opened
(答案→)B. Opened
C. Opening
D. To open
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