Помогите прошу!!! надо вставить а/аn,the the park keeper found some litter in __ park.First he found __ crisp packet. _

 the park keeper found some litter in _а_ park he found _аn_ crisp packet. __ packet was in _a_ middle of_an_ footbal pitch.then he found _an_ old comic. _a_ comic was under _a_ three hear _a_ lake.then he found some orange peel behind _a_ fence next to _a_ bus stop.