Английский язык 3 года назад красотка23022002

Form the words as in the example.
Example:the textbooks of the pupil - the pupils texetbooks
1) the nicknime of my sister - ...
2) the sharpener of his brother - ...
3) the fel - tip pens of their sons - ...
4) the computer of my parents - ...

Ответ
8
Инкогнито
1) My sister's nickname.
2) His brother's sharpener.
3) Their sons' fel-tip pens.
4) My parents' computer.