填空,已给出单词的第一个字母People are a( ) taught to say "thank you" or "thanks" when somebody has given them somethihg or done something for them.In a s( ) many British people say "thank you " several times at the check-out ,e.g.when the operator tells t( ) the total cost of their goods,when he or she gives them their c( ) or gives back their credit card ,and sometimes a( ) before they leave.

填空,已给出单词的第一个字母
People are a( ) taught to say "thank you" or "thanks" when somebody has given them somethihg or done something for them.In a s( ) many British people say "thank you " several times at the check-out ,e.g.when the operator tells t( ) the total cost of their goods,when he or she gives them their c( ) or gives back their credit card ,and sometimes a( ) before they leave.