问题
选择题
Many people _____ the opening ceremony of 2010 World Expo, which was so amazing.
A．witnessed
B．participated
C．swallowed
D．handled
答案
答案：A
本题考查动词词义。句意：很多人见证了2010世博会的开幕式，那场面十分壮观。witness目击，符合句意。
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