题目内容：

Who is the woman under the tree near the house?
She is _________ aunt.
A.Sam and Tim B.Sam and Tim's C.Sam's and Tim's D.Sam's and Tim

优质解答

选B
如果是两个人共有的 就在后面加's
如果不是共有的 就要分别在两个名字后面加's
此题的谓语动词是is所以说明只有一个人..所以选择B