It is known to us that it was such great efforts _______ all the Chinese athletes had made _______ helped them get 51 gold medals in the 2008 Beijing Olympic Games. [ ]

We’ll be free tomorrow，soI suggest ______ to the history museum

What kind of movies do you like— I like movies ______ can cheer me up.

I feel really _____ before the exams.—Take it easy. Sure you are the best.

There was a big fire in Harbin__________ the afternoon of January 2nd.