My boyfriend's room, my son's-in -low question и так далее,добавляя апостоф s.
2) woman,lioness,aunt,wife,daughter,baroness,hostess,actress,countess,grandmother,tigeress,poetess.
3)
On
In
At
In
On
In
Into
On
In
On
In
On
Into
In
In
On
On
4)
At
At
At
At
At
On
On
On
At
At
On
On
At
On
Удачи)