4. Travelling for pleasure ______

　　A. can be traced back to the 12th century

　　B. became a reality in 1889 when the Savoy Hotel was built

　　C. was almost non-existent during the Middle Ages

　　D. was a privilege enjoyed only by the rich in the Middle Ages

　　5. It is implied that before the 19th century the development of hotel _____

　　A. went side by side with the development of economy

　　B. was quicker when there was no war

　　C. played a leading role in British expansion and colonization

　　D. stimulated industrial development and international exchange

　　CCBCA