Dad, the phone is ringing. I guess either you or Mum ________ on the phone.


  1. A.
    is wanted
  2. B.
    are wanted
  3. C.
    wants
  4. D.
    want
A
解析：
本题考查被动语态，而且“either...or...”连接两个主语时谓语动词要根据后一个来变化。因而答案为A。
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