---Grandpa, what did the doctor say? ---He advised me to live_______ the air is fresher.
Do you know the girl _____ just now?
The mayor of Beijing says that all construction work for the Beijing Olympics___ now
None would have dreamed of there _____ such a beautiful place.
—You seem to have had that car for years. ---Yes, I should sell it ____ it still runs.
- Excuse me, is this Mr. Brown’s office? --- I’m sorry, but Mr. Brown ____ works here. He left about three weeks ago.