The store had to_____a number of clerks because sales were down．

• A、lay out 
  

• B、lay off  
  

• C、lay aside 
  

• D、lay down

The auther hoped that his son .

• A、may be lucky to meet a good teacher 
  

• B、may study in school for fifteen years
  

• C、can read many books 
  

• D、may study science and math

 你是Lucy，寫(xiě)一封給老同學(xué)Allen的邀請(qǐng)信，邀請(qǐng)他參加下個(gè)星期日下午4點(diǎn)(12月23日)的校友聚會(huì)。希望Allen盡快回信接受邀請(qǐng)，以便他們及時(shí)做好安排。