

The car, the driver of which jumped out just before the accident, was completely destroyed. The car, whose driver jumped out just before the accident, was completely destroyed. My brother, whose phone you just heard, is a doctor. The car, which I was driving at the time, suddenly caught fire. "who" is common in spoken English and informal written English Mrs Pratt, who I like very much, is my teacher. Mrs Pratt, whom I like very much, is my teacher. Mrs Pratt, who is very kind, is my teacher. The police are looking for the car of which the driver was masked. The police are looking for the car whose driver was masked. Students whose parents are wealthy pay extra. The student whose phone just rang should stand up. The person I phoned last night is my teacher. The person that I phoned last night is my teacher. The people who I phoned last night are my teachers. The person whom I phoned last night is my teacher. The person that phoned me last night is my teacher. The person who phoned me last night is my teacher.
