---We haven’t seen each other for ages.---No, I don’t remember how many years ago _______ I last saw you.
With everything needed________,she declared that the party began.
—I hope the result of the exams had not been told to us.—________,why did you come here to see our teacher?
Which material can be thrown into the sea ________ on the nature of the material?
He’s got himself into a dangerous situation he is likely to be accused of meeting someone.
Many journalists were sent to ________ the terrible disaster immediately the earthquake broke out in Sichuan Province on May 12th,2008.