In the quiet darkness, I could hear someone _______ the door and go upstairs.
_____ he met with the terrible difficulty did he realize the importance of my advice.
Knowing _____, as a matter of fact, one shouldn’t know is a terrible thing.
After ______silence of several minutes, he came towards her and said, “I have struggled with my feelings , but without ______success!”
.---Can I watch the World Cup games tonight?---_____.I know you have a lot of homework to do tonight.
There have been several new events _____ to the program for the 2008 Beijing Olympic Games.