Plans have been proposed ______ the largest dam in the world to be built along the Congo river.
Lots of the scientists in our country are working hard to ____the planet Mars .
Look at the notice . You are not allowed ____ the gymnasium without permission.
How are you going to _______ such problems?
She _______ you for your money, but not for love.
Class One and Class Five have many good students ,______will be surely admitted by key universities.