We go to school ____ a bike.
.The national debt of Greece has reached 20% of its GDP, ______ the actual breakdown of the country’s economy.
.______ miracle of the box office, “Avatar” brings back the peace and innocence to the heart of audience.
.. Kathryn Bigelow, director of “The Hurt Locker”, was the first female ______ the best director Oscar.
.Because of the sharp drop of birth rate, the number of students sitting the college entrance exams ______ all the time
.Now on hand are two tough tasks for the newly-elected Chile(智利) president: one to help the country to recover from the earthquake, and ______ to invite more foreign aid.