Sitting under the willow trees ____ an old man.
| A．is | B．are | C．is there | D．are there |
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 |