题目内容：

( )The World Expo will ________ in Shanghai in year 2010.
A.take part in B.hold C.take place D.happen

优质解答

A参加,B举行,但应该是Be held 必须被动,因为主语只能是人.
C 举行举办,主语是物,
D,发生
so the answer is C