----- Mary looks very upset. She _______ failed to pass the exam. ----- I guess so. It's very difficult after all.
All the drivers have been warned that driving after drinking shall ____ serious accidents.
Depression is the leading cause of suicide, ____ in turn is the third leading cause of death among 15 to 24 year olds in the United States.
Everyone agrees that the Philippine police ____for the tragedy that Hong Kong tourists were killed.
In ___ year 751, the Chinese traveler Du Huan was taken ___ prisoner by the Arabic army.
—My name is Katherine.Shall I spell it for you? —.