Millions of youngsters across Europe could suffer ________ hearing loss after five years if they listen to MP3 players at too high a volume for more than five hours a week, EU scientists warned.
Scientists are trying to develop a special material, _______ they will make use of in space.
The education of _______young is always _______ hot and serious topic in modern society.
--- It shouldn’t take long to clear up after the party if we all volunteer to help. --- That’s right. _____________.
Mary: I think you should call Tom and say sorry to him. Ted:! It was his fault.
Alec asked the policeman he worked to contact him whenever there was an accident.