---Who is that woman?-She is mother.A. Tom’s and John’sB. Tom and John’sC. Tom and Joh

问题补充：

---Who is that woman? ---She is mother.

A. Tom’s and John’s

B. Tom and John’s

C. Tom and John

D. Tom’s and John

答案：

A. Tom’s and John’s

(答案→)B. Tom and John’s

C. Tom and John

D. Tom’s and John

解析：本题回答语的含义是那个女的是汤姆和约翰共有的母亲，表示共有的，只需在最后一个名词后使用所有格，加’s，故本题选B。