I remember I have been here before. There used to be a church near the park, _______?
Under the Dome, ________ 103-minute documentary released by Chai Jing, has pushed public awareness about air pollution and encouraged people to join in efforts to make ________difference.
---- Sorry, I can't find the books you asked for.---- __________.
The reason _________ the little actress has been such a success is ________ she is both clever and hardworking.
I have no idea _______ we can do with these waste materials.
FBI stands _________ Federal Bureau of Investigation.