The ________ Olympic Games will be held in Rio de Janeiro on August 5, 2016.

The elderly need special care in winter，as they are________to thesudden changes of weather.

How come your father can read books in German? — Well, he____on a project with some German engineers for 3 years when he was young

Have you heard the latest news? —No, What ________?

It sounds like something is wrong with the car’s engine.—______, we’d better have it repaired immediately.