He had to pause from time to time to wipe the sweat from his forehead, because the air-conditioning system _________.

With so many people __________ in English every day, it will become more and more important to have a good ___________ of English.

A live program on TV is calling on people to ______ money or some other things to the people who have suffered from the flood in Henan Province. 

I’m planning to     two hundred books to the students in poor areas .

 The murderer tried to run away from the prison but he ______ getting caught by the police.