It is the interaction between people, rather than the events __ occur in their lives, __ is the main focus of social psychology.
By the time Jane gets home, her aunt ______ for London to attend a meeting.
---Do you mind if I record your lecture? --- ________. Go ahead.
Was it in the village _______ we used to live _______ the accident happened?
— The door _______. Better have it repaired. — All right.
This picture was taken a long time ago . I wonder if you can _______ my father.