_____ Dasan is from Canada, he can speak Chinese very well.— I know he studies Chinese hard.
Is that Dec.21,2012 is the end of the world true?—Definitely not,but ________ must be paid to global climate change
In the questionnaire, the subjects are questioned whether they____ no smoking in the public area
Can you make sure _____________ the gold ring?
I wonder what it feels like to be one of ______ really rich. The Browns already have Rolls Royce and now they are buying ______ third.