_____ is known to us all that the 2012 Olympic Games will take place in London.
Hit by a hammer, my foot became ______.
--- What else do you want to know about the cell phone?--- _______ it can be used as a digital camera. You know, I’m into photography.
The old man stood there with his eyes ______ on the picture.
Scientists are convinced ______ the positive effect of laughter ______ physical and mental health.
---I’m going out tonight.---Well, I’d rather you ______.