When Tom________，please let me know.—Mary said when Tom________，just tell her about it.

It is widely believed that China has been into a more prosperous and advanced country in the last century.

The company won the bid for the project by saying that it would do the cleaning up afterwards ________.

－How is George now －I hear the manager ______ him a good job, but he refused it.

What are you going to do with so many vegetables—Well, ______ allow them to go bad, I will sell themat half price.