1. Oberhof , where we went on holidays, is a well-known sea resort.
2. Mr Judge, who teaches history in our school, is very patient.
3. Jim , whose sister used to be my girlfriend, invited me to his party.
4. My black shoes, which I bought last winter, are too small for me.
5. The White House, which is about four hours by car from New York, is in Washington DC.
6. The telephone was invented by Alexander Graham Bell, who also made the first phone call.