Rio de Janeiro of Brazil ________ the bid to hold the 2016 Summer Olympic Games after beatingrivals Chicago, Tokyo and Madried.[ ]

(2013·北京，31)________makes the book so extraordinary is the creative imagination of the writer.

It is very common that former soldiers havedifficulty in ___________ civilian life.

I like the second football match ____ was held last week.

periment has_________ thepossibility of the existence of any life on that planet, but it does not meanthere is no life on other planets