21.  Those who graduate from colleges of arts tend to supervise the running of an enterprise, charging with administration, finance, personnel affairs and other Decision-making departments.

22.  They ignored the call of nature and the enviroment protection, desoultorily cutting down trees, giving off poinous gases and charging waste water into clean rivers.

23.  Nowadays, throughout the world, many institutions and organs are founded to charge the enviroment problems.