—Whose room is this? Is it the______?
          —Yes, it is ______.

  • A twins'; Tom and Tim's
  • B twin's; Tom's and Tim's
  • C twins'; Tom and Tim
  • D twins’; Tom’s and Tim
参考答案: A
解题思路: 双胞胎twins是以s结尾的复数名词,因此其所有格是twins’;room是单数名词,因此是只有一间房间,表示Tom和Tim共同拥有,只需在Tim后面加’s,故选A。