你是劉玲(Liu Ling)，寫(xiě)一封給曉東(Xiao Dong)的道歉信，講明道歉的原因、解決問(wèn)題的辦法，以彌補(bǔ)因曉東來(lái)拜訪(fǎng)而自己不在家給他帶來(lái)的沮喪。

One of the reasons why men invented certain sounds to express thoughts and actions isthat．

• A、they could agree upon certain signs  
  

• B、they could write them down
  

• C、they could communicate with each other 
  

• D、they could combine them

Staying in a hotel costs_____renting a room in a dormitory for a week．

• A、twice more 
  

• B、twice as much as
  

• C、as much twice as 
  

• D、as much as twice