Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks

“Custom is the great guide of human life,” wrote Scottish  philosopher David Hume. Knowing the customs of a place is a guide to understanding the soul of that place and its (21) ...........  The  customs  of  a nation:  how  people marry, how families celebrate holidays and other (22) ......., what people eat, how they socialize and have fun reveal many things about their country and their inner thoughts and feelings.

In Wales, a firm handshake is usual when first being introduced, but is often dispensed with  thereafter.  When  meeting  for  the  first  time,  a  common  (23) ....... is “How do you do?” or “Pleased to meet you.” On other occasions, “How are you?” may be used. Good friends , especially, young people use “Hello” and “Hi” to greet each other. Women who are close friends may kiss the (24) ......... ones  slightly  on the cheek;  sometimes  men  also kiss women  in this way. Many women remain seated when being introduced and shaking hands. First names are widely used. The Welsh enjoy visiting friends and neighbors, and often call without an invitation. When they’re invited for a meal, however, it is (25) .......... impolite to arrive late.