Выбрать нужную форму множественного числа имени существительного: (ox) and (deer) are animals. i have two ( sister). put your (money) in the pocket. you must keep your ( tooth) clear. (tree) are in red and yellow.

1 oxen deer
2 sisters
3 money
4 teeth
5 trees

Oxen and deer are animals.
I have two sisters.
Put your money in the pocket.
You must keep your teeth clear.
Trees are in red and yellow.