It is pleasure for us to make a graduate address in presence of thousands of students in the graduation ceremony.
A．不填; a B．the; 不填 C．a; the D．the; the
Chinese GDP has been growing steadily year by year, _________ second in the world now.
A．to rank B．ranked C．ranking D．ranks
You can go out, _________ you promise to be back before 11 o'clock.
A．as far as B．so far as C．when D．so long as
Unless _________ by the police, you should keep silent over the accident.
A．asked B．ask C．being asked D．having asked
The media today can draw public attention to situation ________ help is actually needed.
A．that B．which C．what D．where
_________ in the mountain for more than 2 days, the climbers looked pale and weak.
A．To be trapped B．Having trapped C．Trapping D．Trapped
