is known to us is that the 2016Olympic Games will be held in Rio de Janeiro, Brazil.

has been looking for a job over the whole year,feeling she can’t get _________ without work experience.

What did Frank do last night—_______. Maybe he went swimming.

The government insists that the dam willnot do any ________to the environment .

The students _____ are hard-working and ready to help others should be praised.