Which would you like to visit, Shanghai Expo Garden or Beijing Bird Nest— ______. I prefer to enjoy the 2010 FIFA World Cup at home.

The job is not very rewarding ________ money, but he is getting valuable experience from it

Have you heard about the missing flight- Sure, it_______ the only thing on the news these days.

Seeing a large crowd at the street corner，I became aware ofunusualhappening

Alice ________ to see his aunt if she_______free tomorrow.