They are said to have developed a new ______ to teaching, which is said to improve classroom teaching greatly. 

Mr. Chen drove all the ___ to Wuhan to attend the meeting.

Some famous singers live on the ___ from their record sales.

---- Yang Yang carried off the first Winter Olympic _____ medal for China. ---- Great! What _____ she won for our motherland!

 Judging by her _______, Jane must be a southerner.