单选题 She is a bad roommate because she ______ things about and makes a mess of theroom.
  • [A] has always been left
  • [B] is always leaving
  • [C] has always left
  • [D] has always been leaving


【正确答案】 B
【答案解析】本句中always与现在正在进行时…起用，表示“报怨”。答案为B。