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.
.Look! The dictionary, ________cover is red, is a birthday gift given by Tom.
_______environmental damage is done, it takes many years for the ecosystem to recover.
.Every possible means _______to prevent the air pollution, but the sky is still not clear.
.______ surprised the family most was ________the girl played basketball very well.
.I have to see the doctor because I________a lot lately.