Obviously the measures taken by the local government have_______ the solution to drinking water problems in this region.
I think at the beginning of each book a __________ introduction to it is necessary.
In _________to being used in industry,laser can be applied to operations in the hospital.
The newspaper says that the BBC will be________the match live from Paris.
The pencil fell off the table and went _______across the floor.
Bill suggested________a meeting on what to do for the Shanghai Expo during the vacation.