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
Since the film “Life of Pi” was on, it _________ more and more people around the world.
A．attracted B．had attracted
C．has attracted D．will have attracted
When asked about his happiness, Baoqiang said that if he could afford _________ house, he would feel he was really _________ success.
A．/, a B．/, the C．a, a D．a, /
