What do you think of the film 2012？—Well, it’s good．At least it’s ______the one I saw last time with Jean．

Jane’s mother preferred ________ TV at home to _______ to the concert.

__________ he had not hurt his leg, John would have won the race.

Are they from Canada—No, they ____.

Barack Obama delivered a speech to 500 local youths during his visit to China, many of were from Fudan University and Tongji University.