A third B B． native C C． second D D． foreign

A A． due to the large number of the visitor B B． due to its long for freedom C C． because of the handler's neglect of duty D D． as a result of the damaged chain and fence

A A managerial staff at the Zoo. B B． A journalist from National post. C C． A visitor to the zoo. D D． The person who make the animal escape.

A A． The tiger escape lasted a whole day. B B． The zoo workers planned to shoot the tiger dead． C C． The tiger wasn't kept securely enough for the public. D D． The incident took place on the zoo's anniversary day.

A A． Pen－Animal Prison B B． Zoo Tiger－Wandering Free C C． Siberian Tiger－Dangerous Animal D D． Zoo－Dangerous Site

A conditions in the work place B B． the safety of the product C C． changes in industrial production D D． the safety and health of workers and customers

A A． workers often got ill because of the poor working conditions B B． companies were free to put out any products they wanted to C C． many people were killed by the dangerous products D D． industries were not as careful in management as they are today

A governments and companies had different opinions about the safety of products B B． governments usually make policies for the industry C C． what the scientists said is often right D D． in the past no safety laws were introduced by governments

A A． were put forward due to scientists' recommendations B B． came into being as a result of the workers' demand C C． were introduced because quite a number of people were killed or seriously injured D D． were effective enough to protect workers and customers

A A． argued bitterly with his employer B B． thought he was not wrong C C． was sorry for what he did D D． was sad and self-pitying