Clothing made of man-made materials has advantage over _________ made of natural ones like cotton, wool or silk.
Between the two generations, it is often not their age, _________ their education that causes misunderstanding.
—Can’t you read the sign, sir? No parking here! —_____.
_____ U2, the Irish rock band from Dublin perform a concert in Beijing, tell me in advance.
They only say such unkind things about you out of ____ envy, because you are ____ success as a writer.
____ the police know the killer's identity, they are getting close to catching him.