Напишите слова во множественном числе 1.basis 2.curriculum 3.phenomenon 4.datum 5.criterion 6.stratum 7.analysis 8.cactus 9.formula 10.index 11.medium 12.memorandum 13.antenna 14.genius 15.appendix 16.ox 17.cuckoo 18.child 19.roof 20.fly 21.key 22.leaf 23.zero 24.piano 25.ski 26.woman 27.deer 28.sheep 29.mouse 30.house

1. basis - bases

2. curriculum - curricula

3. phenomenon - phenomena

4. datum - data

5. criterion - criteria

6. stratum - strata

7. analysis - analyses

8. cactus - cacti или cactuses

9. formula - formulas или formulae

10. index - indexes или indices

11. medium - mediums

12. memorandum - memorandums или memoranda

13. antenna - antennae
14. genius - geniuses
15. appendix - appendixes или appendices
16. ox - oxen
17. cuckoo - cuckoos
18. child - children
 19. roof -  roofs или rooves
20. fly - flies
21. key - keys 
22. leaf - leaves
23. zero - zeros или zeroes
24. piano - pianos
25. ski -  skis
26. woman - women
27. deer - deer или deers
28. sheep - sheep
29. mouse - mice
30. house - houses

1 bases
2 curricula
3 phenomena
4 data
5 criteria
6 strata
7 analyses
8 cacti
9 formulae
10 indexes
11 media
12 memorandums
13 antennae
14 geniuses
15 appendices
16 oxen
17 cuckoos
18 children
19 roofs
20 flies
21 keys
22 leaves
23 zeros
24 pianos
25 skis
26 women
27 deer
28 sheep
29 mice
30 houses