Giving up my job to go back to full­time education was a big ________，but now I know it was the best decision I ever made.                                      (2011·湖北，22)

The woman got nothing in _______for her kindness, which made her very upset.

The teachers hope students can keep a ________ between work and relaxation.

(2013·高考江苏卷)With inspiration from other food cultures，American food culture can take a________ for the better.

 You’ve been working all morning — I think you _____a rest.