Pollution is a problem because man in an increasingly populated and industrialized world is upsetting the environment in which he lives. Many scientists maintain that one of man' s greatest errors has been to equate growth with advancement. Now

A.gaps B. intervals C.length D. distance

A.who B. that C.what D. which

A.genuine B. minimum C.modest D. generous

A.risen B. arisen C.raised D. arrived

A.follow B. had followed C.would follow D. have followed

A. loosen

B. remove

C. relieve

D. dismiss

A.were not played B. not to play C.not be played D. did not play

A. to finish their work satisfactorily and relax and enjoy themselves

B. to pay attention to both performance and productivity

C. to work long hours and have short vacations

D. to relax and enjoy themselves quite frequently

A. that he is more reliable

B. his example would lead other employees to work longer hours

C. he has better qualifications

D. he could encourage other employees to do a better job