Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions

Mark the letter A, B, c, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
TỚ CẦN LỜI GIẢI CHI TIẾT Ạ
46. If I take the pessimistic viewpoint, Tokyo won’t be a safe place to live in.
A. Negative        B. optimistic               C. optical                D. neutral
47. To reduce carbon emissions into the atmosphere, ways to limit the use of private cars must be found.
A. Public               B. personal                 C. common                D. shared
48. People who live in towns and cities live in an urban environment.
A. Remote               B. deserted            C. suburban                D. rural
49. There is pollution not only of the physical environment because the various pressure of urban life causes cities to breed crime.
A. Social                   B. mental            C. moral               D. manual
50. Governments have to join hands to solve the environmental problems on a global scale.
A. Worldwide             B. nationwide            C. local              D. intemational