Questions 6 and 7 are based on the following news, At the end of the news item, you will be given 20 seconds to answer the questions．Now listen to the news．

According to the news item，“sleep boxes”are designed to solve the problems of （）

A．London’S preparations for the Notting Hill Carnival．
B．Main features of the Notting Hill Carnival．
C．Police’s preventive measures for the carnival．
D．Police participation in the carnival．

A．Recognition from colleagues should be given less importance．
B．Workers are always willing and ready to learn more new skills．
C．Psychological reward is more important than material one．
D．Work will have to be made interesting to raise efficiency．