The31stSummerOlympicsinRiodeJaneiro，BrazilfromAugust5to21，2016．（）A.holdB.willholdC.havebeenheldD.willbeheld
The 31st Summer Olympics ________ in Rio de Janeiro，Brazil from August 5to 21，2016．（ ）
A. hold
B. will hold
C. have been held
D. will be held
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