6. After the terrorist attack, tourists ______ ( 被劝告暂时不要去该国旅游)
7.( 他把自己奉献于社区工作 ) ______ and is passionate about what he is doing.
8. Man should not exploit the natural resources ______ ( 以牺牲其他物种为代价 ).
9. When Sandy recovered from cancer, her doctor ______ ( 把此归因于她对未来的信念 ).
10. At the end of his speech, the school master encouraged the children to work hard ______ ( 不要让父母失望 ).