--How long are you staying ? -- I don't know .______.
American singer Taylor Swift, 21, _____ big at the 2011 Academy of Country Music Awards in the US on April 3.
Egyptian President decided to ______on Friday afternoon after an 18-day campaign against him, ending his thirty-year rule.
I live in a town ______ runs a small and winding river.
The house caught fire last week, with little of the original building _________.
Jack and Mike were found cheating in the exam, and _____ by their teacher at the moment.were scolded B. are being scolded C. have been scolded D. were being scolded