What are you doing _____vacation?[ ]
A: Today is 8th, August, 2007. There is one year from the open of the 2008 Olympic Games.B: Oh, so the Beijing Olympic Games will be held _____ 8th, August, 2008.[ ]
The man_____ a red sweater is our teacher. [ ]
There are few problems left I believe you can deal with them yourself．
The man stopped smoking because of lung cancer.