“Drive-ins” have large parking lots ______ customers are served in their cars by waitresses．

He was disappointed ____ he had learned from books quite differed from his actual life.

Mrs. Black took the police back to ______ place ______ she witnessed the robbery.

________ anyone come to my office, please tell them I'm not available before four o’clock.

-- The thread of my kite broke and it flew away. -- I had told you it would easily break_______ it was the weakest.