The Shanghai Expo has had a major impact upon China. It is the first World Expo _________ in a developing country in the event’s 159-year history.
A.having been held | B.to hold | C.being held | D.to be held |
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The Shanghai Expo has had a major impact upon China. It is the first World Expo _________ in a developing country in the event’s 159-year history.
A.having been held | B.to hold | C.being held | D.to be held |