we all know that the next Olympic Games()in Rio de Janeiro in 2016

问题描述:

we all know that the next Olympic Games()in Rio de Janeiro in 2016
is being held
will be held
has been held
will be holding
理由说下谢谢

填will be held,将来发生的事情所以用将来时,奥运会被举行,所以用被动