The life of a high school student is usually active, exciting and full of fun, but it ______ be stressful sometimes.

By the time the reporter arrived at the spot, the injured _______ to hospital.

If you keep on working hard, you are sure to in your career.

I’m a football fan. I was interested ineverything _____is about the 2010 World Cup.

Shanghai authorities have guaranteed the quality ofthe city’s drinking water _____ more than 7500 rotting pigs ______ floating onthe Huangpu River in the past week.