Напишите во множественном числе 1. a activity – ; 2. a thief – ; 3. a party – ; 4. a echo – ; 5. a means – ; 6. a photo

1. an activity – activities;2. a thief – thieves; 3. a party – parties; 4. a echo – echoes; 5. a means – means; 6. a photo – photos; 7. an Englishman – Englishmen; 8. а swine – swine; 9. a belief – beliefs; 10. a sheep – sheep; 11. a half – halves; 12. a tomato – tomatoes; 13. a woman – women; 14. a safe - safes; 15. kilo – kilos; 16. a scarf – scarves;17. a bench – benches;18. a celebrity – celebrities; 19. a louse – lice; 20. a bath – baths;21. play – plays.