16. Образуйте множественное число имён существительных: 1) One pen — two ...; 2) One pencil — three ...; 3) One baby — four ...; 4) One brush — five ...; 5) One potato — six ...; 6) One tree — seven ...; 7) One fly — three ...; 8) One desk — four ...; 9) One letter — three ...; 10) One skirt — two ...; 11) One key — four ...; 12) One disk — two ...; 13) One match — three ...; 14) One clown — two ...; 15) One room — three ...

1. One pen — two pens.
2. One pencil — three pencils.
3. One baby — four babies.
4. One brush — five brushes.
5. One potato — six potatoes.
6. One tree — seven trees.
7. One fly — three flies.
8. One desk — four desks.
9. One letter — three letters.
10. One skirt — two skirts.
11. One key — four keys.
12. One disk — two disks.
13. One match — three matches.
14. One clown — two clowns.
15. One room — three rooms.

Перевод: ручки, карандаши, дети, щётки, картофелины, деревья, мухи, парты, письма, юбки, ключи, диски, спички, клоуны, комнаты.