一Can you bring me the bill.please?一 ,sir, Just a minute.
A 100-year-old man ran a marathon(马拉松) in Toronto on Sunday. He became the ___ person to complete the long distance running in the world.
The population problem may be ___ one of the world today.
Mary is the youngest ___ the three girl.
Most people like Jazz 107.9 FM, because it ___ very beautiful.
— Can I ask you ___ questions? — Sure.