Students use FOR WHO all the time and this is not correct.
Watch this video and learn the correct way to ask:لمن هذا الهاتف
To get new videos ( اشتراك مجاني): http://www.youtube.com/subscription_center?add_user=aglzwa7id
If you have extra questions, feel free to ask me.
Also go ahead and answer the questions below for practice.
1. - Whose umbrella is this ? (the teacher)
2. - Whose bicycle is that ? (Old MacDonald)
3. - Whose guitar is this ? (Frankie)
4. - Whose watering-can is this ? (Aunt Rosie)
5. - Whose toys are those ? (your children)
6. - Whose marbles are these ? (these boys)
7. - Whose glasses are these ? (the doctor)
8. - Whose suitcases are these ? (an Italian passenger)
9. - Whose watches are those ? (a lady)
10. - Whose house is that ? (my grandparents)
11. - Whose cat is this ? (Alison's brothers)