1 The old man is a professor who teaches chemistry in a college.
2 The woman who you were talking about is here now.
3 This is the hall in which(where) we listened to the report the other day.
1 The old man is a professor who teaches chemistry in a college.
2 The woman who you were talking about is here now.
3 This is the hall in which(where) we listened to the report the other day.