If not _______, you’re allowed to return everything within 10 days for a full refund and no further duties.
Is this school ______you have studied in for four years?
It was in this new hall _________ was just set up last month ________ we held an important meeting yesterday.
The problem was raised ________ we should get all the machines________.
—How did you find the film Curse of the Golden Flower? —__________. I can’t think too highly of it.
Every possible means __to prevent the air pollution, but the sky is still not clear.