CORRECT THIS SENTENCE: I saw my grandmother in a photo who she took when she was 16.
I saw my grandmother in a photo WHICH/THAT she took when she was 16.
CORRECT THIS SENTENCE: The man which is interested in buying your car will phone later.
The man WHO/THAT is interested in buying your car will phone later.
CORRECT THIS SENTENCE: That's the man who wife is my sister's best friend.
That's the man WHOSE wife is my sister's best friend.
