______, the conference began.

John received an invitation to dinner,and with his work_____ ,he gladly accepted it.

--- Come on, please give me some ideas about the project.---Sorry. With so much work ____ my mind, l almost break down..

With the boy______ the way, we had no difficulty ______the village.

With more and more people__________ the importance of English, English training has become a profit-making industry.