In primitive times men traveled．

• A、for joy 
  

• B、from necessity
  

• C、to broaden the mind 
  

• D、to escape from the wild animals

Traveling has now become a highly organized business．

• A、so we can travel anywhere without difficulty
  

• B、because we are provided with all kinds of convenient means for traveling
  

• C、because trayeling organizations can be found in the countries the world over
  

• D、so travelers have increased rapidly

 你是Lucy，寫一封給老同學(xué)Allen的邀請信，邀請他參加下個星期日下午4點(12月23日)的校友聚會。希望Allen盡快回信接受邀請，以便他們及時做好安排。