______ you need any help, you can always phone me at the office.
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.
_____ the students in our class have in common is _____ they are all working hard to pursue their dreams.