1.b> / i>; will you recognize the offender? ?
2.b> / / ; among causes of air pollution, car exhaust fumes may be the worst offender ;
3.b> 1) .i> ; ; first offender ; ; juvenile offender ; old / second, subsequent / offender ; offender by accident ;
2) .i> ; no smoking here, offender will be fined 5 dollars , .