_云南成考网

 你是Lucy，写一封给老同学Allen的邀请信，邀请他参加下个星期日下午4点(12月23日)的校友聚会。希望Allen尽快回信接受邀请，以便他们及时做好安排。

It's already 5 o'clock now．Don't you think it's about time_____?

• A、we are going home

• B、we go home
  

• C、we went home 
  

• D、we can go home

According to the passage，using garbage is.

• A、for heating in France each year
  

• B、a new way in a modern society
  

• C、a good way to solve the problem of energy shortage
  

• D、too expensive as an energy source