Zhu Zhiwen，________ grassroot singer，was ________ real hit in 2012.

Nobody but doctors or nurses and those ____ by Dr Hu ____ to enter the patient’s room.

Before going abroad，he devoted all the time he could ________ his spoken English.

She often argues ______ her classmates ______ small things，which sometimes makes them very unhappy.

—________ that makes her different from the other students?
—Honesty, hard work and, I suppose, a bit of imagination.