新概念二册 07－Too Late

为时太晚 

The plane was late and detectives were waiting at the airport all morning. They were expecting a valuable parcel of diamond fromSouth Africa. A few hours earlier, someone had told the police that thieves would try to steal the diamonds. When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield. Two men took the parcel off the plane and carried it into the Customs House. While two detectives were keeping guard at the door, two others opened  the parcel. To their surprise, the precious parcel was full of stones and sand!