--How much is the petrol per liter today? ---Oh, 6.00 yuan. It ______ sharply since last month.
They use computers to keep the traffic smoothly.
All flights ________called off because of the terrible weather, they had to go there by train.
After the six-party talk in Beijing, an agreement was reached _________ that North Korea would abandon _________ nuclear weapons.
He never dreamt of _____for him to be sent abroad very soon.
Finally she got too tired and fell asleep at the desk, her right hand still ______ a pen.